HVAC Ductwork
Shop HVAC ductwork and installation supplies for residential and light-commercial heating, air-conditioning and evaporative-cooling systems. Our selection includes insulated flexible duct, galvanized sheet-metal duct fittings, round duct pipe, elbows, reducers, start collars, T-wye fittings, register boxes, return-air boxes and related installation materials.
Use Flexible Duct for insulated supply and return-air runs, or browse Metal Duct Fittings for components used to connect, transition, branch and terminate an HVAC duct system. Duct tape, cable ties and related fasteners are also available for securing compatible connections.
Before ordering, verify the duct diameter, fitting dimensions, connection type, insulation rating and available installation space. HVAC duct sizing affects airflow and system performance, so ductwork should be selected and installed according to the equipment requirements and applicable building codes.
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4" x 4" x 4" 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...SHMTYS30P$30.00 -
9 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...SHMSFT30YW$27.99 -
14" x 12" x 10" Duct Wye Branch Galvanized Single Wall
$99.00Sheet 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...SHMTYS26141210$99.00 -
16" x 14" x 14" 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...SHMTYS26161414$154.00 -
5 X 3 Vent Pipe Reducer - HVAC Ductwork Sheet Metal
$20.99FREE 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...SHMSFT30SM$20.99 -
6" Round End Cap - HVAC Ductwork Sheet Metal
$21.99FREE 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...SHMREC30U$21.99 -
9 X 8 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...SHMSFT26YX$27.99 -
9" 45 Degree Saddle Tap Branch - HVAC Ductwork Sheet Metal
$61.99FREE 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...SHMST426Y$61.99 -
9" X 25' Flexible Ductwork R6 Insulated
R6 INSULATED FLEXIBLE DUCT 9" X 25' Thermally insulated , fully lined, flexible air duct designed for use in all medium pressure cooling and heating systems. It is used in either supply or return...A13602409Qty in Cart: 0Price:Subtotal: -
10" X 25' Flexible Ductwork R6 Insulated
R6 INSULATED FLEXIBLE DUCT 10" X 25' Thermally insulated , fully lined, flexible air duct designed for use in all medium pressure cooling and heating systems. It is used in either supply or return...A13602410Qty in Cart: 0Price:Subtotal: -
12 X 9 Vent Pipe Reducer - HVAC Ductwork Sheet Metal
$31.99FREE 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...SHMSFT2812Y$31.99 -
12" x 10" x 6" Duct Wye Branch Galvanized Single Wall
$89.00Sheet 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...SHMTYS301210U$89.00