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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10" x 10" x 10" Duct Wye Branch Galvanized Single Wall
$68.00Sheet 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...SHMTYS3010$68.00 -
6" 45 Degree Saddle Tap Branch - HVAC Ductwork Sheet Metal
$37.99FREE SHIPPING to Continental US | 45 degree duct saddle tap adds a branch from existing metal duct runs. Use with flexible duct or vent pipe for take-off air. Curved flange wraps around existing...SHMST426U$37.99 -
16" Duct Start Collar Snap Together Sheet Metal Tabbed
$17.9916" 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...SHMSC26H16S$17.99 -
18" 90 Degree Adjustable Elbow - HVAC Ductwork Sheet Metal
$135.99FREE SHIPPING to Continental US | Adjustable elbow makes 90 degree bend in metal duct systems or transition for flexible duct. 26 gauge segmented steel adjusts from straight to 90 degrees. Crimped on...SHMA92618$135.99 -
16" 90 Degree Adjustable Elbow - HVAC Ductwork Sheet Metal
$85.99FREE SHIPPING to Continental US | Adjustable elbow makes 90 degree bend in metal duct systems or transition for flexible duct. 26 gauge segmented steel adjusts from straight to 90 degrees. Crimped...SHMA92616$85.99 -
18" X 36" Snap Lock Pipe - HVAC Ductwork Sheet Metal
$136.99FREE SHIPPING Snap Lock Pipe is ideal for retrofit and new install of HVAC duct systems. Ships unsnapped to fit through tight spaces. Snap it together when ready to install. Seal and fasten together...SHMKD261803$136.99 -
14" Duct Start Collar Snap Together Sheet Metal Tabbed
$15.9914" 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...SHMSC26H14S$15.99 -
18 X 18 X 18 Ceiling Register Box
$57.99FREE 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...SHMCB2818PG$57.99 -
16 X 16 X 16 Ceiling Register Box
$55.99FREE 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...SHMCB2816PG$55.99 -
20 X 20 Return Air Box Can HVAC Plenum
$76.99Free 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...SHMRAC630PGS2020$76.99 -
6 X 6 X 6 Side Out Ceiling Register Box - HVAC Ductwork Sheet Metal
$34.99Wall, ceiling or floor box for air register connect to side outlet round HVAC supply ductwork. Last dimension is round connection size. Sheet metal will come in 30 gauge or better. If you need a...SHMCBST30UPG$34.99 -
16" x 16" x 10" Duct Wye Branch Galvanized Single Wall
$154.00Sheet 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...SHMTYS26161610$154.00