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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
20 X 14 Return Air Box Can HVAC Plenum
$65.99Free 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...SHMRAC630PGS2014$65.99 -
20 X 16 Return Air Box Can HVAC Plenum
$67.99Free 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...SHMRAC630PGS2016$67.99 -
7" x 7" x 7" Duct Wye Branch Galvanized Single Wall
$39.00Sheet 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...SHMTYS30W$39.00 -
12" x 12" x 8" 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...SHMTYS301212X$89.00 -
10 X 10 X 8 Side Out Ceiling Register Box - HVAC Ductwork Sheet Metal
$66.99Wall, 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...SHMCBST301010XPG$66.99 -
8X8X8 Ceiling Register Box
$28.99FREE 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...SHMCB30XPG$28.99 -
7" X 25' Flexible Duct R8 - Insulated HVAC Ductwork A13102407
R8 INSULATED FLEXIBLE DUCT 7" 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...A17802407Qty in Cart: 0Price:Subtotal: -
6" X 25' Flexible Duct R8 - Insulated HVAC Ductwork A13102406
R8 INSULATED FLEXIBLE DUCT 6" 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...A17802406Qty in Cart: 0Price:Subtotal: -
8 X 8 X 8 Side Out Ceiling Register Box - HVAC Ductwork Sheet Metal
$42.99Wall, 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...SHMCBST30XPG$42.99 -
10" Disk Damper w/Hardware - HVAC Ductwork Sheet Metal
$17.99FREE 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.SHMDD3010$17.99 -
12X12X10 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...SHMCB30121210PG$34.99 -
14" x 14" x 12" 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...SHMTYS26141412$99.00