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

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

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

The Master Flow 4 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 4 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 4 in. Round ducts
• Ideal for pitched roofs and being used for attic ventilation or to cover exhaust pipes extending through roofs
• 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

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

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 Beaded Metal Pipe is available to help make your next HVAC project a success. Beaded pipe can be used as a main trunk line or branch line, as well as in return air situations. It maintains the most efficient characteristics for airflow and is common throughout the country. A simple snap lock design and sturdy galvanized steel construction on Master Flow beaded pipe creates a quick and secure installation that you can rely on.

• Beaded for strength
• Easy-to-install snap lock design
• Crimped end for a secure interlocking fit
• Duct can be cut to length as needed
• Steel section connectors - resist chemical, increases the life of the boiler
• Always insulate ductwork for greater system efficiency and comfort

The Master Flow 4 in. Round Duct Cap, also called a tee-cap or clean-out plug, is constructed of galvanized steel for durability. The duct cap is used to terminate or block off a rectangular duct run in HVAC systems. It can be installed with sheet metal screws (sold separately) and is suitable for most HVAC applications.

• Use to cap off a round or rectangular duct run
• Install with sheet metal screws (not included)
• Fits most HVAC types for universal application
• Seal seams with code-approved mastic, sealant or duct tape (sold separately)

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 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)

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

Master Flow Beaded Metal Pipe is available to help make your next HVAC project a success. Beaded pipe can be used as a main trunk line or branch line, as well as in return air situations. It maintains the most efficient characteristics for airflow and is common throughout the country. A simple snap lock design and sturdy galvanized steel construction on Master Flow beaded pipe creates a quick and secure installation that you can rely on.

• Beaded for strength
• Easy-to-install snap lock design
• Crimped end for a secure interlocking fit
• Can be cut to needed length with tin snips
• Always seal seams with building code approved sealant or duct tape
• Always insulate ductwork for greater system efficiency and comfort

Master Flow Beaded Metal Pipe is available to help make your next HVAC project a success. Beaded pipe can be used as a main trunk line or branch line, as well as in return air situations. It maintains the most efficient characteristics for airflow and is common throughout the country. A simple snap lock design and sturdy galvanized steel construction on Master Flow beaded pipe creates a quick and secure installation that you can rely on.

• Beaded for strength
• Easy-to-install snap lock design
• Crimped end for a secure interlocking fit
• Can be cut to needed length with tin snips
• 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 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)

Rectorseal Slimduct 3.75"-2.75" Reducer, White 100-77. Reducers Offer An Aesthetically Pleasing Transition From A 3.75" (100mm) Duct To A 2.75" (77mm) 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 #85106

• Reducers Offer An Aesthetically Pleasing Transition From A 3.75" (100mm) Duct To A 2.75" (77mm) 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

Master Flow Metal Pipe is available in a variety of common lengths, diameters and gauges to help make your next HVAC project a success. Round pipe can be used as a main trunk line or branch line, as well as in return air situations. It maintains the most efficient characteristics for airflow and is common throughout the country. A simple snap lock design and sturdy galvanized steel construction on Master Flow pipe creates a quick and secure installation that you can rely on.

• Crimped end for a secure interlocking fit
• Galvanized steel construction
• Always seal seams with building code approved sealant or duct tape
• Can be cut to needed length with tin snips
• Always insulate ductwork for greater system efficiency and comfort

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

Master Flow Beaded Metal Pipe is available to help make your next HVAC project a success. Beaded pipe can be used as a main trunk line or branch line, as well as in return air situations. It maintains the most efficient characteristics for airflow and is common throughout the country. A simple snap lock design and sturdy galvanized steel construction on Master Flow beaded pipe creates a quick and secure installation that you can rely on.

• Beaded for strength
• Easy-to-install snap lock design
• Crimped end for a secure interlocking fit
• Can be cut to needed length with tin snips
• Always seal seams with building code approved sealant or duct tape
• Always insulate ductwork for greater system efficiency and comfort

This all aluminum elbow has a 4-piece construction and can be adjusted up to 90 to use at various angles. It can be used in many general-purpose applications including the venting of most types of heating units. The aluminum elbow has 1-crimped end and 1-straight end.

• 4-piece all aluminum construction
• Used to vent most types of heating units
• Fully adjustable to 90
• 1 crimped end allows for easy installation

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 4 in. Dia DuraVent brand b-vent to be attached to the bottom of a different brand b-vent like Selkirk or metal fab back to the appliance
• Aluminum inner wall and galvalume outer wall construction that features an industry leading twist-lock design
• Maintains UL Listing for both brands of b-vent

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)

The Duct to Duct Increaser connects 3 in. to 4 in. ducts together. It is ideal for bathroom fan exhaust applications. Finished in black color. The increaser is designed to be a tight fit to reduce air leaks in the connections. When using the increaser with a 3 in or 4 in snap pipe (aluminum or galvanized) , it may be necessary to unsnap the receiving end of the pipe, then insert the increaser and snap the pipe back together.

• Made of polypropylene
• Used when your exhaust port or exhaust hood needs to be increased from 3 in. to accommodate a 4 in. duct
• Consult your local building codes for approved installation practices
• Light weight design

The Master Flow 5 in. Round Duct Cap, also called a tee-cap or clean-out plug, is constructed of galvanized steel for durability. The duct cap is used to terminate or block off a rectangular duct run in HVAC systems. It can be installed with sheet metal screws (sold separately) and is suitable for most HVAC applications.

• Use to cap off a round or rectangular duct run
• Install with sheet metal screws (not included)
• Fits most HVAC types for universal application
• Seal seams with code-approved mastic, sealant or duct tape (sold separately)