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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8" Disk Damper w/Hardware - HVAC Ductwork Sheet Metal
$16.99FREE 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...SHMDD30X$16.99 -
18" Multi-Pitch Swamp Cooler Roof Jack 78317
$141.59Adjustable roof jack ducts air from evap cooler to roof penetration. Flat to 6/12 pitch roof. Ships with sliding "cookie sheet" damper. Has slot for barometric automatic damper.78317$141.59 -
10X10X8 Ceiling Register Box
$31.99FREE 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...SHMCB301010XPG$31.99 -
14" Round End Cap - HVAC Ductwork Sheet Metal
$34.99FREE SHIPPING to Continental US | Round duct end cap closes off unused portions of round duct. Use with duct tape to terminate old ductwork runs in flexible duct or round metal duct. Sheet metal...SHMREC2814$34.99 -
20 X 12 Return Air Box Can HVAC Plenum
$56.99Free 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...SHMRAC630PGS2012$56.99 -
12X12X8 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...SHMCB301212XPG$34.99 -
12" Disk Damper w/Hardware - HVAC Ductwork Sheet Metal SHMDD2812
$18.99FREE 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...SHMDD2812$18.99 -
10 X 7 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...SHMSFT3010W$27.99 -
18" Round End Cap - HVAC Ductwork Sheet Metal
$56.99FREE SHIPPING to Continental US | Round duct end cap closes off unused portions of round duct. Use with duct tape to terminate old ductwork runs in flexible duct or round metal duct. Sheet metal...SHMREC2618$56.99 -
10" 45 Degree Saddle Tap Branch - HVAC Ductwork Sheet Metal
$64.99FREE 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. A curved flange wraps around the...SHMST42610$64.99 -
20" 90 Degree Adjustable Elbow- HVAC Ductwork Sheet Metal
$157.99Adjustable 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...SHMA92620$157.99 -
10" x 8" x 6" 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...SHMTYS3010XU$68.00