Metal Duct Fittings
Shop galvanized metal HVAC duct fittings and round duct pipe for residential and light-commercial heating, air-conditioning, ventilation and evaporative-cooling systems. Available products include snap-lock pipe, adjustable elbows, reducers, start collars, T-wye fittings, saddle taps, dampers, end caps, register boxes, return-air boxes and flexible-duct connectors.
Use metal duct fittings to build straight runs, change direction, transition between duct sizes, create branch lines and connect ductwork to registers, grilles and HVAC equipment. Many fittings are designed for use with round galvanized pipe or insulated flexible duct.
Before ordering, confirm the duct diameter, fitting dimensions, crimped or non-crimped connection orientation and the intended airflow direction. Sheet-metal products may have sharp edges; wear appropriate gloves during handling and installation. Seal and mechanically secure duct connections according to applicable installation requirements.
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3-Foot Snap-Lock Duct Pipe
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45 Degree Duct Saddle Taps
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5-Foot Snap-Lock Duct Pipe
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Adjustable 90° Duct Elbows
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Ceiling Register Boxes
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Disc Dampers with Hardware
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Duct Reducers
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Evaporative Cooler Ductwork
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Flexible Duct Connectors
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Return Air Boxes
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Roof Pipe Flashings
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Round Duct End Caps
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Side-Outlet Ceiling Register Boxes
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Start Collars
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T-Wye Duct Fittings
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Wall & Floor Register Boxes
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14 X 10 Vent Pipe Reducer - HVAC Ductwork Sheet Metal
$44.99FREE SHIPPING to Continental US - Sheet metal will come in 30 gauge or better. If you need a specific gauge, please call to place your order. Sheet metal is designed for rough in ductwork and is not...SHMSFT281410$44.99 -
14" Disk Damper w/Hardware - HVAC Ductwork Sheet Metal
$21.99FREE SHIPPING to Continental US | Use in round sheet metal ductwork to limit flow of supply air. Affix inside duct at desired angle and fasten for permanent air dampening.Sheet metal will come in 30...SHMDD2814$21.99 -
18" Disk Damper w/Hardware - HVAC Ductwork Sheet Metal
$26.99FREE SHIPPING to Continental US | Use in round sheet metal ductwork to limit flow of supply air. Affix inside duct at desired angle and fasten for permanent air dampening.Sheet metal will come in 30...SHMDD2618$26.99 -
12 X 12 Return Air Box Can HVAC Plenum
$45.99Free Shipping to Continental US | Return air box is a plenum for attaching return duct to return grille in ceiling or floor. Use with start collar and return filter frame to provide return air flow...SHMRAC630PGS1212$45.99 -
12X12X9 Ceiling Register Box
$34.99FREE SHIPPING to Continental US | Ceiling box for air register connect to round HVAC supply ductwork. Last dimension is round connection size. Sheet metal will come in 30 gauge or better. If you need...SHMCB301212YPG$34.99 -
20 X 18 Vent Pipe Reducer - HVAC Ductwork Sheet Metal
$71.99FREE SHIPPING to Continental US - Sheet metal will come in 30 gauge or better. If you need a specific gauge, please call to place your order. Sheet metal is designed for rough in ductwork and is not...SHMSFT262018$71.99 -
4" x 3" x 3" Duct Wye Branch Galvanized Single Wall
$30.00Sheet metal branch tee wye diverts air to a secondary duct from the main line. 45 degree branch provides efficient air distribution. Crimped on outflow end for easy attachment to metal pipe. Use with...SHMTYS30PMM$30.00 -
5" Flex Duct Connector - HVAC Ductwork Sheet Metal
$13.99FREE SHIPPING to Continental US | Sheet metal will come in 30 gauge or better. If you need a specific gauge, please call to place your order. Sheet metal is designed for rough in ductwork and is not...SHMDC28S$13.99 -
6" Duct Start Collar Snap Together Sheet Metal Tabbed
$10.996" Duct Connect Start CollarSheet metal will come in 30 gauge or better. If you need a specific gauge, please call to place your order. Sheet metal is designed for rough in ductwork and is not made...SHMSC26HUS$10.99 -
8 X 6 X 6 Wall Air Register Box
$29.99FREE SHIPPING to Continental US - Wall or floor box for air register connect to round HVAC supply ductwork. Last dimension is round connection size. Sheet metal will come in 30 gauge or better. If...SHMFB30XUU$29.99 -
10 X 9 Vent Pipe Reducer - HVAC Ductwork Sheet Metal
$27.99FREE SHIPPING to Continental US - Sheet metal will come in 30 gauge or better. If you need a specific gauge, please call to place your order. Sheet metal is designed for rough in ductwork and is not...SHMSFT3010Y$27.99 -
4" 90 Degree Adjustable Elbow HVAC Ductwork Sheet Metal
$12.99Adjustable elbow makes 90 degree bend in metal duct systems or transition for flexible duct. segmented steel adjusts from straight to 90 degrees. Crimped on one end to easily slip into metal duct...SHMA926P$12.99