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.
-
3-Foot Snap-Lock Duct Pipe
-
45 Degree Duct Saddle Taps
-
5-Foot Snap-Lock Duct Pipe
-
Adjustable 90° Duct Elbows
-
Ceiling Register Boxes
-
Disc Dampers with Hardware
-
Duct Reducers
-
Evaporative Cooler Ductwork
-
Flexible Duct Connectors
-
Return Air Boxes
-
Roof Pipe Flashings
-
Round Duct End Caps
-
Side-Outlet Ceiling Register Boxes
-
Start Collars
-
T-Wye Duct Fittings
-
Wall & Floor Register Boxes
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Free Shipping
20 x 16 in. Round Sheet Metal Duct Reducer
$71.99Connect two different round duct sizes with this 20 x 16 in. sheet metal reducer.Nominal connection sizes: 20 in. and 16 in.For transitioning between compatible round HVAC ductsConfirm both...$71.99 -
Free Shipping
6 x 4 in. Round Sheet Metal Duct Reducer
$23.99Connect two different round duct sizes with this 6 x 4 in. sheet metal reducer.Nominal connection sizes: 6 in. and 4 in.For transitioning between compatible round HVAC ductsConfirm both connection...$23.99 -
Free Shipping
18 x 16 in. Round Sheet Metal Duct Reducer
$62.99Connect two different round duct sizes with this 18 x 16 in. sheet metal reducer.Nominal connection sizes: 18 in. and 16 in.For transitioning between compatible round HVAC ductsConfirm both...$62.99 -
Free Shipping
16 x 12 in. Round Sheet Metal Duct Reducer
$52.99Connect two different round duct sizes with this 16 x 12 in. sheet metal reducer.Nominal connection sizes: 16 in. and 12 in.For transitioning between compatible round HVAC ductsConfirm both...$52.99 -
Free Shipping
8 x 6 in. Round Sheet Metal Duct Reducer
$26.99Connect two different round duct sizes with this 8 x 6 in. sheet metal reducer.Nominal connection sizes: 8 in. and 6 in.For transitioning between compatible round HVAC ductsConfirm both connection...$26.99 -
Free Shipping
7 in. 45° Round Duct Saddle Tap, Sheet Metal Branch
$54.99Add a 7 in. 45° takeoff branch to a compatible round metal duct run with this sheet metal saddle tap.Nominal branch diameter: 7 in.Curved flange follows the main duct surfaceConnects a new branch to...$54.99Qty in Cart: 0Quantity:Price:$54.99Subtotal: -
Free Shipping
10 x 10 x 10 in. Side-Outlet Ceiling Register Box, 10 in. Round Duct Connection
$70.99Connect a 10 x 10 in. register opening to 10 in. round HVAC supply duct with this side-outlet ceiling register box.Register opening: 10 x 10 in.Round duct connection: 10 in.Side outletMeasure the...$70.99 -
Free Shipping
10 x 8 x 6 in. Wall or Floor Register Box, 6 in. Round Duct Connection
$38.99Connect a 10 x 8 in. register opening to 6 in. round HVAC supply duct with this wall or floor register box.Register opening: 10 x 8 in.Round duct connection: 6 in.Sheet metal register bootMeasure the...$38.99 -
Free Shipping
16 x 14 in. Round Sheet Metal Duct Reducer
$52.99Connect two different round duct sizes with this 16 x 14 in. sheet metal reducer.Nominal connection sizes: 16 in. and 14 in.For transitioning between compatible round HVAC ductsConfirm both...$52.99 -
Free Shipping
7 in. Round Duct Disc Damper with Hardware
$15.99Control airflow in a 7 in. round metal supply duct with this disc damper and hardware.Nominal duct diameter: 7 in.Disc sets the opening angle inside the ductHardware included as listedVerify duct...$15.99 -
Free Shipping
12 x 12 x 10 in. Galvanized Duct T-Wye, 45° Branch
$89.00This 12 x 12 x 10 in. sheet metal T-wye adds a 45° branch to a round HVAC duct run.Nominal openings: 12 in. x 12 in. x 10 in.Crimped outlet for joining compatible metal pipeUsed to branch air to...$89.00 -
Free Shipping
6 x 6 x 6 in. Ceiling Register Box, 6 in. Round Duct Connection
$23.99Connect a 6 x 6 in. register opening to 6 in. round HVAC supply duct with this ceiling register box.Register opening: 6 x 6 in.Round duct connection: 6 in.Sheet metal register bootMeasure the...$23.99