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

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

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

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

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)

Master Flow 26-Gauge 90 Adjustable 8 in. Elbow is used to make turns in runs of round pipe and flexible duct through 90. 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 position.

• Used to make angular or gradual turns in runs of pipe
• Adjustable to any angle through 90
• 26-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 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)

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)

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

The Master Flow 6 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)

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)

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)

Master Flow Standard 90Adjustable 4 in. Elbow is used to make turns in runs of round pipe and flexible duct through 90. 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 90position.

• Used to make angular or gradual turns in runs of pipe
• Adjustable to any angle through 90
• 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)

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

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 Master Flow 26 Gauge 7 in. x 6 in. Flat Reducer is made OG galvanized steel. Its short length makes it ideal for tight spaces. The reducer is used to transition from a 7 in. pipe to a 6 in. pipe system. It is suitable for most HVAC applications.

• 26-Gauge, galvanized steel construction for durability
• Connects 7 in. pipe to 6 in. pipe in duct run
• Connect using sheet metal screws (not included)
• Universal - not crimped
• Can be crimped as needed

The Master Flow 8 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 round 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 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)

Master Flow standard 90 degree Adjustable 6 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)

This Aluminum Pipe can be used to vent most types of heating units including gas and electric clothes dryers. This product features an easy to close snap lock system. It's composed of a non-combustible, all aluminum construction.

• 4 in. of diameter x 24 in. L
• Made of 0.012 in. aluminum
• Used for transition ducting, not for in wall use
• For correct and approved installation practices always consult your local building codes

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 12 in. Take-Off is constructed of 30-gauge, galvanized steel for durability. This HVAC part is used to connect 12 in. round pipe or flexible duct to a flat surface. It features a tacky gasket to help create a secure, substantially airtight seal. This take-off has a maximum temperature rating of 390 degrees Fahrenheit.

• Use to connect 12 in. round pipe or flexible duct to a flat surface
• Install with sheet metal screws (not included)
• Always seal seams with code-approved sealant or duct tape (not included)
• Tacky gasket helps to create a secure, substantially airtight seal
• Maximum temperature rating of 390 degrees Fahrenheit, minimum temperature rating of -100 degrees Fahrenheit
• Tacky gasket creates a secure, substantially air-tight seal.
• Use to connect round pipe or flexible duct to flat surface.
• Install with sheet metal screws

The Master Flow 4 in. x 3 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 4 in. pipe to a 3 in. pipe in an HVAC system. It is suitable for most HVAC applications.

• Hemmed collar edges for an improved fit and increased strength
• Connects 4 in. pipe to 3 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)