Dundas Jafine's 4 in. aluminum tension clamps are ideal for use with flexible or semi-rigid ducts. These clamps open and close with pressure. No tool required.

• Ideal for use with flexible or semi-rigid ducts
• Aluminum construction
• No tools necessary
• Easy operation

Heavy Gauge 4 in. Pipe is used to vent boilers, furnaces and hot water heaters. Available in a variety of common lengths, diameters and gauges to help make your next HVAC project a success. A simple snap lock design and sturdy galvanized steel construction combine for a quick and secure installation that you can rely on.

• Easy-to-install snap lock design
• Crimped end with a stop-bead for a secure interlocking fit
• Sturdy 26-Gauge, galvanized steel construction
• Always seal seams with building code approved sealant or duct tape
• Always insulate ductwork for greater system efficiency and comfort

Heavy Gauge Adjustable Elbows are used to make angular turns in round pipe to vent boilers, furnaces and hot water heaters where allowed by code. They have a sturdy galvanized steel construction and are simple to adjust. They are also crimped on one end to easily fit into a pipe or other fitting of the same diameter.

• Used to make angular or gradual turns in runs of pipe
• Adjustable to any angle through 90 degree
• 28-Gauge, galvanized steel construction
• Crimped end for easy installation
• Always seal seams with building code approved sealant or duct tape
• Always insulate ductwork for greater system efficiency and comfort

The Master Flow 6 in. Goose Neck Vent in Black can be used to cover exhaust pipes extending through your roof or for attic ventilation. This vent is designed to be used on 6 in. round ducts. It's made of zinc-coated galvanized steel for durability and reliability. This vent features a heavy-duty screen which helps protect against small animals from entering your home through the vent. The black finish helps this vent blend into your home's rooftop.

• Designed for 6 in. round ducts
• Ideal for pitched roofs and being used for attic ventilation or to cover exhaust pipes extending through roof
• Seal seams with code approved mastic, sealant or duct tape
• Install using appropriate roofing nails (not included)
• Heavy-duty screen helps protect against small animals from entering
• Ample flashing for added leak protection
• Black finish helps blend into rooftops
• Always seal flashing with approved roof sealant

Master Flow Drive Cleats and S Cleats are used to join sections of rectangular duct and stack duct in. HVAC systems. These cleats are sleeves of galvanize steel that help to securely assemble the top and bottom (S) and left and right sides (Drive) of rectangular duct runs. S cleats are used to connect the long side of the duct, while Drive cleats are used to connect the short side.

• Always seal seams with code approved mastic or sealant (or duct tape)
• Always insulate ductwork for greater system efficiency and comfort
• S cleats secure bare edges of rectangular duct
• Insulate ductwork to promote system efficiency

These Worm Clamps are ideal for attaching aluminum ducts to other aluminum products, including elbows and pipe. Easily adjustable with the turn of a screwdriver, these clamps can be used with all venting applications. A heavy-duty galvanized steel construction ensures longevity through a variety of uses. For optimal performance, it is recommended to use a manual screwdriver to avoid over tightening and stripping the screw.

• Made of heavy duty galvanized steel
• Easily adjustable using a hex or flat head screwdriver
• Adjusts from 5-1/8 in. to 6-1/2 in.
• Can be used in all venting applications

Duct strapping is ideal for use in hanging hot air supply and cold air returns to framing members. Founded in 1971, Diversitech Corporation is North Americas largest manufacturer of equipment pads and a leading manufacturer and supplier of components and related products for multiple industries, including: HVACR, electrical, consumer hardware retail, electrical utility, automotive retail and pool and spa channel. Diversitechs mission for its wholesaler partners is to simplify their work. We do this by offering more than 200 product categories all from a single manufacturing/supplier source to create product availability and supply chain cost advantages for our customers in every market we serve. We also leverage best-in-class customer service to react quickly and professionally to every customer request.

• Galvanized steel construction resists corrosion
• Solid strapping, easy to drill or nail
• Can accept fasteners at any point along the length of the strapping
• Convenient cardboard dispenser allows for easy transport

The 4 in. x 6 ft. Heavy Duty Semi-Rigid Aluminum Duct with Collars is ideal when all aluminum duct is required x code in some gas and electric dryer applications. It can also be used for bathroom fan venting. This duct is totally noncombustible and has a maximum operating temperature of 435 degree F.

• Aluminum collars on both ends of the duct swivel making for easy attachment to the dryer exhaust port and exterior exhaust hood
• UL2158A listed and marked for safe dryer venting
• New manufacturing technology incorporated into the duct allows for easy rotation and therefore more durable handling of the duct by the contractor
• UL duct is thicker than the standard non-UL semi-rigid version that allows for a more robust installation

Double Wall Construction

• Non-Positional Locking System Makes Installation A Snap
• No Tools Required For Disassembly

The Master Flow 4 in. Starting Collar is suitable for most HVAC applications. It provides a transition from a flat surface like a plenum (made from metal, ductboard or insulated) to round pipe or insulated flexible duct. It can be used with ductboard, an internally lined or unlined plenum. This galvanized steel starting collar features extra-long tabs to fit most duct board thicknesses.

• Install with sheet metal screws (not included)
• Fits most HVAC types for universal application
• Can be used with an internally lined or unlined plenum
• Extra-long tabs to fit most ductboard thicknesses through 1-1/2 in. (or R-6 value)
• Seal seams with code-approved mastic, sealant or duct tape (sold separately)

Type B Gas Vent designed to the demands of the common category I appliance installation. Engineered to heat up rapidly and remain hot during the appliance operation to allow for minimal condensation. An innovative system for a lock tight connection called DuraLock.

• Use with natural gas and liquified propane (LP) category I appliances with a draft hood
• Adds 16.5 in. L to a 4 in. Dia installation
• Aluminum inner wall and galvalume outer wall construction that features a industry leading twist-lock design
• 1 in. clearance to combustibles in a single or multi-family dwelling applications

The Master Flow 6 in. Starting Collar is suitable for most HVAC applications. It provides a transition from a flat surface like a plenum (made from metal, ductboard or insulated) to round pipe or insulated flexible duct. It can be used with ductboard, an internally lined or unlined plenum. This galvanized steel starting collar features extra-long tabs to fit most duct board thicknesses.

• Install with sheet metal screws (not included)
• Fits most HVAC types for universal application
• Can be used with an internally lined or unlined plenum
• Extra-long tabs to fit most ductboard thicknesses through 1-1/2 in. (or R-6 value)
• Seal seams with code-approved mastic, sealant or duct tape (sold separately)

Double Wall Construction

• Non-Positional Locking System Makes Installation A Snap
• No Tools Required For Disassembly

This Master Flow 10 in. x 4 in. to 6 in. Universal Register Box creates a straight (in-line) transition from round pipe or insulated flexible duct to an air register or grille. It can be installed with sheet metal screws. It is suitable for most HVAC applications. This universal register box is made of galvanized steel.

• Creates a straight, in-line transition from an insulated flexible duct or round pipe to an air register or grille
• Installs with sheet-metal screws
• Insulate ductwork for system efficiency and comfort
• Seal seams with code-approved mastic, sealant or duct tape (not included)

Double Wall Construction

• Non-Positional Locking System Makes Installation A Snap
• No Tools Required For Disassembly

Flex Adapters connect the Flexible Elbow to the 3.75" (100mm) Duct. . Weather Resistant Pvc, Uv Stabilized & Fire Resistant. Tested To Over 2,000 Hours. Temperature Range -4degree f To 140degree F. Complements any residential or commercial building. Available in SD77 (2 3/4"), SD100 (3 3/4"), SD140 (51/2") and 4 color options (white, ivory, black and brown) . 78" duct lengths and 15 fittings ensure complete flexibility of installation. Mfg #85109

• Flex Adapters connect the Flexible Elbow to the 3.75" (100mm) Duct.
• Weather resistant PVC, UV stabilized & fire resistant. Tested to over 2,000 hours. Temperature range -4degree F to 140degree F
• Complements any residential or commercial building. Available in SD77 (2 3/4"), SD100 (3 3/4"), SD140 (51/2") and 4 color options (white, ivory, black and brown)
• 78" duct lengths and 15 fittings ensure complete flexibility of installation

Type B Gas Vent designed to the demands of the common category I appliance installation. Dura Cap is required where the pipe terminates above the roof line. Use for vertical installations only.

• Use with natural gas and liquified propane (LP) category I appliances with a draft hood
• Engineered to heat up rapidly and remain hot during the appliance operation to allow for minimal condensation, an innovative system for a lock tight connection called DuraLock
• 1 in. clearance to combustibles in single and multi-family dwellings
• Available in 3 in. to 8 in. Dia
• Limited lifetime warranty
• Listed to UL 441, UL 1777 and ULC S628

Made of strong, durable galvanized steel, the 4 in. x 36 in. Round Type B Gas Vent Pipe is built to last. The exclusive locktab feature adds versatility to installation on approved gas appliances in residential, light commercial and industrial applications. Rugged construction, assured safety and fully tested and listed per UL441.

• Constructed of strong, durable galvanized steel, this vent pipe is built to last
• Die-formed ends to assure uniform sizing
• For use on approved gas appliances in residential, light commercial and industrial applications
• Exclusive locktab feature adds versatility to installation
• Fits most 4 in. pipes
• In accordance with National Fire Protection Association Nfpa54 and Nfpa211 standards

Type B Gas Vent designed to the demands of the common category I appliance installation. Engineered to heat up rapidly and remain hot during the appliance operation to allow for minimal condensation. An innovative system for a lock tight connection called DuraLock.

• Use with natural gas and liquified propane (LP) category I appliances with a draft hood
• Allows a 5 in. Dia B-vent run to be increased to 6 in. for added draft
• Aluminum inner wall and galvalume outer wall construction that features an industry leading twist-lock design
• 1 in. clearance to combustibles in a single or multi-family dwelling applications

The Master Flow 12 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket is used in standard Heating and Air Conditioning (HVAC) systems and some venting applications. The duct has R6 insulation which contains 33% more insulation than the standard R4.2 product. This additional insulation provides greater thermal efficiency to save energy. The product is also covered in a heavy duty, silver jacket for durability. The duct is ETL listed, meeting the UL181 standard.

• Flexible duct is convenient for use in multiple applications including heating and A/C systems and some venting
• Oversized core to connect quickly and easily to standard sheet metal fitting
• Galvanized core wire for greater corrosion resistance vs. non-galvanized wire
• Duct can be cut to length as needed
• Insulated duct features a maximum temperature rating of 200 degree F
• Always install per instructions and seal using approved mastic or sealant (or approved tape)

Master Flow 4 in. Aluminum Elbow makes venting a boiler, furnace or hot water heater a snap, installing on an angle up to 90 via a crimped-end design that makes it easy to affix. The elbow fits roundest aluminum pipes with 4 in. Dia Ideal for use in high-heat applications. Ships in 90 position.

• Durable aluminum construction
• Designed to fit round piping so that you can vent boilers, furnaces and hot water heaters on an angle
• Light-weight, crimped-end design installs easily and provides a secure fit
• Seam seal using building code approved sealant or duct tape for a quick and easy finishing touch
• Fits most round aluminum pipes with 4 in. Dia
• Adjustable design allows use at angles up to 90
• For reliability in high-heat applications

Type B Gas Vent designed to the demands of the common category I appliance installation. Engineered to heat up rapidly and remain hot during the appliance operation to allow for minimal condensation. An innovative system for a lock tight connection called DuraLock.

• Use with natural gas and Liquified Propane (LP) category I appliances with a draft hood
• Connects two 4 in. Dia b-vent flues to common vent to a larger 5 in. Dia b-vent to handle increased exhaust volume
• Aluminum inner wall and galvalume outer wall construction that features a industry leading twist-lock design
• 1 in. clearance to combustibles in a single or multi-family dwelling applications

Heavy Gauge 3 in. Pipe is used to vent boilers, furnaces and hot water heaters. Available in a variety of common lengths, diameters and gauges to help make your next HVAC project a success. A simple snap lock design and sturdy galvanized steel construction combine for a quick and secure installation that you can rely on.

• Easy-to-install snap lock design
• Crimped end with a stop-bead for a secure interlocking fit
• Sturdy 28-Gauge, galvanized steel construction
• Always seal seams with building code approved sealant or duct tape
• Always insulate ductwork for greater system efficiency and comfort

Master Flow Standard 90 degree Adjustable 8 in. Elbow is used to make turns in runs of round pipe and flexible duct through 90 degree . It has a sturdy galvanized steel construction and is simple to adjust. It is also crimped on 1 end to easily fit into a pipe or other fitting of the same diameter. Ships in 90 degree position.

• Used to make angular or gradual turns in runs of pipe
• Adjustable to any angle through 90 degree
• 30-Gauge, galvanized steel construction
• Always seal seams with building code approved sealant or duct tape (not included)
• Always insulate ductwork for greater system efficiency and comfort (not included)

Master Flow Heavy Gauge Pipe is used to vent boilers, furnaces and hot water heaters. Master Flow metal pipe is available in a variety of common lengths, diameters and gauges to help make your next HVAC project a success. A simple snap lock design and sturdy galvanized steel construction combine for a quick and secure installation that you can rely on.

• Crimped end with a stop-bead for a secure interlocking fit
• Sturdy 26-Gauge, galvanized steel construction
• Always seal seams with building code approved sealant or duct tape
• Always insulate ductwork for greater system efficiency and comfort

Drive Cleats and "S" Cleats are used to join sections of rectangular duct and stack duct in. HVAC systems. These cleats are sleeves of galvanize steel that help to securely assemble the top and bottom ( "S") and left and right sides (Drive) of rectangular duct runs. "S" cleats are used to connect the long side of the duct, while Drive cleats are used to connect the short side.

• Galvanized steel construction
• Always seal seams with code approved mastic or sealant (or duct tape)
• Always insulate ductwork for greater system efficiency and comfort
• "S" cleats secure bare edges of rectangular duct
• Insulate ductwork to promote system efficiency

Used to vent two appliances together where codes allow. Heavy duty construction meets most building codes for single wall use. Crimped branch pipe in the direction of airflow.

• 26-Gauge steel construction
• "Y" branch allows air to flow easily
• Crimped in the direction of airflow
• Vent multiple appliances where code allows

5 in. x 60 in. Round Type B Gas Vent Pipe is built to last with its strong, durable galvanized steel construction. The exclusive locktab feature add versatility to your installation.

• Constructed of strong, durable galvanized steel, this vent pipe is built to last
• Die-formed ends to assure uniform sizing
• For use on approved gas appliances in residential, light commercial and industrial applications
• Exclusive locktab feature adds versatility to installation
• Fits most 5 in. pipes
• In accordance with National Fire Protection Association Nfpa54 and Nfpa211 standards
• Type B gas vent is also referred to as b vent or type b vent
• Some common applications may include warm air furnaces, tank water heaters, residential boilers, common vented appliances and more
• Used on gas-fired category I natural draft appliances

Type B Gas Vent designed to the demands of the common category I appliance installation. Engineered to heat up rapidly and remain hot during the appliance operation to allow for minimal condensation. An innovative system for a lock tight connection called DuraLock.

• Use with natural gas and Liquified Propane (LP) category I appliances with a draft hood
• Allows 6 in. Dia DuraVent brand b-vent to be attached to the bottom of a different brand b-vent like Selkirk or MetalFab back to the appliance
• Aluminum inner wall and galvalume outer wall construction that features a industry leading twist-lock design
• Maintains UL listing for both brands of b-vent

Type B Gas Vent designed to the demands of the common category I appliance installation. Engineered to heat up rapidly and remain hot during the appliance operation to allow for minimal condensation. An innovative system for a lock tight connection called DuraLock.

• Use with natural gas and liquified propane (LP) category I appliances with a draft hood
• Adds 3 in. to 10 in. of adjustability to a 4 in. Dia b-vent run
• Aluminum inner wall and galvalume outer wall construction that features a industry leading twist-lock design
• 1 in. clearance to combustibles in a single or multi-family dwelling applications

The Master Flow 7 in. x 6 in. Round Reducer is made of galvanized steel. It features hemmed collar edges for enhanced strength and a secure fit. The reducer is used to transition from a 7 in. pipe to a 6 in. pipe in an HVAC system. It is suitable for most HVAC applications.

• Hemmed collar edges for an improved fit and increased strength
• Connects 7 in. pipe to 6 in. pipe in duct run
• Seal seams with code-approved mastic, sealant or duct tape (sold separately)
• Always insulate ductwork for greater system efficiency and comfort (insulation not included)

The 4 in. Steel Male Universal Gas Vent Adapter is a Type B round fitting designed for approved gas appliances in residential, light commercial and industrial applications. It is made of strong, durable galvanized steel. The ends are die-formed to assure uniform sizing for strong, easy-to-connect joints. A locktab feature offers the option of installation without sheet-metal screws. It is UL listed for safety in accordance with NFPA standards.

• Strong, durable galvanized steel outer pipe
• For use on approved gas appliances
• Locktab feature can be used instead of sheet-metal screws for ease of installation
• Ends are die-formed to assure uniform sizing for strong, easy-to-connect joints
• Tested and listed per UL 441 for installation in single- and multi-story buildings

Type B Gas Vent designed to the demands of the common category I appliance installation. Engineered to heat up rapidly and remain hot during the appliance operation to allow for minimal condensation. An innovative system for a lock tight connection called DuraLock.

• Use with natural gas and liquified propane (LP) category I appliances with a draft hood
• Designed to meet the rugged demand of the jobsite, with its inner wall recessed to eliminate damage in handling
• 1 in. clearance to combustible's in single and multi-family dwellings
• Innovative system for a lock tight connection called DuraLock

The Master Flow Air-Tite 6 in. Take-Off provides an airtight seal when connecting insulated flexible duct or round pipe to a flat surface. This take-off can be used to redirect air from any side of the plenum or to transition from a rectangular pipe run. The built in damper allows adjusting air flow in the duct run. The Air-Tite Take-Off can be installed with sheet metal screws (sold separately) and is suitable for most HVAC applications.

• Built-in damper
• Can be used to route air from any side of the plenum or to transition from a rectangular pipe run
• Install with sheet metal screws (not included)
• Fits most HVAC types for universal application
• Tacky gasket helps create a secure, airtight seal
• Seal seams with code-approved mastic, sealant or duct tape (sold separately)

Type B Gas Vent designed to the demands of the common category I appliance installation. Engineered to heat up rapidly and remain hot during the appliance operation to allow for minimal condensation. An innovative system for a lock tight connection called DuraLock.

• Use with natural gas and liquified propane (LP) category I appliances with a draft hood
• Gives 4 in. b-vent run flexibility to bend around an obstruction like a stud and maintain 1 in. clearance
• Has 48 in. L to allow multiple bends
• Eliminates the need for b-vent to more easily connect an appliance to the b-vent wye or tee in the mechanical room

These Saddle Air-Tite Take-Offs are used to transition from a round surface to 6 in. round pipe or 6 in. insulated flexible duct. Quality construction makes these take-offs easy to install and long-lasting. The Tacky gasket provides excellent seal.

• Always seal seams with code approved mastic or sealant (or duct tape)
• Install with sheet metal screws (not included)
• Always insulate ductwork for greater system efficiency and comfort

Type B Gas Vent adjustable pipe is used to add length to a straight length of Type B Gas Vent. The 12 in L adds 3 in L to 10 in L. This pipe requires a 2 in. overlap.

• Use with natural gas and liquified propane (LP) category I appliances with a draft hood
• Designed to meet the rugged demand of the jobsite, with its inner wall recessed to eliminate damage in handling
• 1 in. clearance to combustibles in single and multi-family dwellings
• Innovative system for a lock tight connection called DuraLock

The 5 in. Steel Storm Collar is a Type B fitting made with durable galvanized steel and is typically applied above the flashing to provide a weatherproof seal of the pipe above the roof line. It is designed for use on approved gas appliances.

• Strong, durable galvanized steel
• Apply above the flashing to provide a weatherproof seal of the pipe above the roof line
• 8-5/8 in. Dia x 1-5/8 in. length
• Type B fitting for approved gas appliances

The Master Flow Air-Tite 10 in. Take-Off can be installed with sheet metal screws (sold separately). It provides an airtight seal when connecting insulated flexible duct or round pipe to a flat surface. This take-off can be used to redirect air from any side of the plenum or to transition from a rectangular pipe run.

• Can be used to route air from any side of the plenum or to transition from a rectangular pipe run
• Install with sheet metal screws (not included)
• Fits most HVAC types for universal application
• Tacky gasket helps to create a secure, airtight seal
• Seal seams with code-approved mastic, sealant or duct tape (sold separately)

The Master Flow 6 in. Starting Collar is suitable for most HVAC applications. It provides a transition from a flat surface like a plenum (made from metal or lined duct) to round pipe or insulated flexible duct. A Damper can be added to this model if needed.

• Connects round pipe or insulated flexible duct to a flat surface to start a duct run
• Fits most HVAC types for universal application
• Can be used with an internally lined or unlined plenum
• Extra-long tabs to fit most duct board thicknesses through 1-1/2 in. (or R-6 value)

Type B Gas Vent designed to the demands of the common category I appliance installation. Engineered to heat up rapidly and remain hot during the appliance operation to allow for minimal condensation. An innovative system for a lock tight connection called DuraLock.

• Use with natural gas and liquified propane (LP) category I appliances with a draft hood
• Adds 10.5 in. L to a 3 in. Dia installation
• Aluminum inner wall and galvalume outer wall construction that features an industry leading twist-lock design
• 1 in. clearance to combustibles in a single or multi-family dwelling applications

The Master Flow Air-Tite 6 in. Take-Off provides an airtight seal when connecting insulated flexible duct or round pipe to a flat surface. This take-off can be used to redirect air from any side of the plenum or to transition from a rectangular pipe run. It can be installed with sheet metal screws (sold separately) and is suitable for most HVAC applications.

• Can be used to route air from any side of the plenum or to transition from a rectangular pipe run
• Install with sheet metal screws (not included)
• Fits most HVAC types for universal application
• Tacky gasket helps create a secure, airtight seal
• Seal seams with code-approved mastic, sealant or duct tape (sold separately)

Double Wall Construction

• Non-Positional Locking System Makes Installation A Snap
• No Tools Required For Disassembly
• Compatible with All Brands

Heavy Gauge 7 in. Pipe is used to vent boilers, furnaces and hot water heaters. Available in a variety of common lengths, diameters and gauges to help make your next HVAC project a success. A simple snap lock design and sturdy galvanized steel construction combine for a quick and secure installation that you can rely on.

• Easy-to-install snap lock design
• Crimped end with a stop-bead for a secure interlocking fit
• Sturdy 26-Gauge, galvanized steel construction
• Always seal seams with building code approved sealant or duct tape
• Always insulate ductwork for greater system efficiency and comfort

The Master Flow Air-Tite 8 in. Take-Off is suitable for most HVAC applications. It provides an airtight seal from a flat surface to an insulated flexible duct or round pipe. This take-off can be used to redirect air from any side of the plenum or to transition from a rectangular pipe run. It can be installed using sheet metal screws (sold separately). It is suitable for most HVAC applications.

• Can be used to route air from any side of the plenum or to transition from a rectangular pipe run
• Install with sheet metal screws (not included)
• Fits most HVAC types for universal application
• Tacky gasket helps to create a secure, airtight seal
• Seal seams with code-approved mastic, sealant or duct tape (sold separately)

The 3 in. x 36 in. Steel Round Gas Vent Pipe is made of durable galvanized steel with die-formed ends for uniform sizing and strong, easy-to-connect joints. A locktab feature allows the option of installation without using sheet-metal screws. This Type B round fitting is designed for use on approved gas appliances in residential, light commercial and industrial applications. It is tested and UL listed for safety in accordance with NFPA standards.

• Strong, durable galvanized steel
• Gas vent pipe for use on approved gas appliances
• Locktab feature can be used instead of sheet-metal screws for ease of installation
• Each end is die-formed to assure uniform sizing for strong, easy-to-connect joints
• Tested and listed per UL 441 for installation in single- and multi-story buildings
• Type B gas vent is also referred to as b vent or type b vent
• Some common applications may include warm air furnaces, tank water heaters, residential boilers, common vented appliances and more
• Used on gas-fired category I natural draft appliances

Master Flow 16 in. x 35 in. Galvanized Panning is used to seal the underside of a joist space. This panning is constructed with sturdy 30-Gauge galvanized steel. It can be cut to size to suit a variety of applications.

• Seals the underside of a joist space
• 16 in. width is equal to the distance of joist spacing, which enables the panning to be nailed or screwed directly into the wood
• Can be cut to size to fit a variety of applications
• Use as a run of duct, usually to channel air back through the return air system
• Install with sheet metal screws (not included)

The 4 in. Steel Round Gas Vent Top is a Type B, galvanized-steel fitting that helps prevent rain and debris from entering the vent. It is not for use with wood-burning applications. The end is die-formed for uniform sizing and a strong, easy-to-connect joint. The cap is tested and UL listed for safety in accordance with NFPA standards.

• Strong, durable galvanized steel
• Prevents rain and debris from entering the vent
• Not to be used with wood-burning applications
• Tested and listed per UL 441 for installation in single and multi-story buildings