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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18 x 18 x 16 in. Sheet Metal Duct T-Wye, 45° Branch
$197.00This 18 x 18 x 16 in. sheet metal T-wye adds a 45° branch to a round HVAC duct run.Nominal openings: 18 in. x 18 in. x 16 in.Crimped outlet for joining compatible metal pipeUsed to branch air to...$197.00 -
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6 in. x 36 in. Snap-Lock Round HVAC Duct Pipe
$42.99Build a straight round duct run with this 6 in. diameter, 36 in. long snap-lock sheet metal pipe.Nominal diameter: 6 in.Length: 36 in.Ships flat/unsnapped for assembly at the jobsiteSnap together,...$42.99 -
10 in. Sheet Metal Roof Pipe Flashing for Round Duct
$89.99Fit a 10 in. round duct roof penetration with this sheet metal pipe flashing.Nominal duct size: 10 in.Roof flashing for a round pipe penetrationVerify roof pitch, flashing base dimensions and...$89.99Qty in Cart: 0Quantity:Price:$89.99Subtotal: -
16 in. Sheet Metal Roof Pipe Flashing for Round Duct
$165.99Fit a 16 in. round duct roof penetration with this sheet metal pipe flashing.Nominal duct size: 16 in.Roof flashing for a round pipe penetrationVerify roof pitch, flashing base dimensions and...$165.99Qty in Cart: 0Quantity:Price:$165.99Subtotal: -
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18 x 12 x 12 in. Sheet Metal Duct T-Wye, 45° Branch
$197.00This 18 x 12 x 12 in. sheet metal T-wye adds a 45° branch to a round HVAC duct run.Nominal openings: 18 in. x 12 in. x 12 in.Crimped outlet for joining compatible metal pipeUsed to branch air to...$197.00 -
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8 in. x 60 in. Snap-Lock Round HVAC Duct Pipe
$119.00Build a straight round duct run with this 8 in. diameter, 60 in. long snap-lock sheet metal pipe.Nominal diameter: 8 in.Length: 60 in.Ships flat/unsnapped for assembly at the jobsiteSnap together,...$119.00 -
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9 in. Round Duct Disc Damper with Hardware
$16.99Control airflow in a 9 in. round metal supply duct with this disc damper and hardware.Nominal duct diameter: 9 in.Disc sets the opening angle inside the ductHardware included as listedVerify duct...$16.99 -
14 in. Sheet Metal Roof Pipe Flashing for Round Duct
$124.99Fit a 14 in. round duct roof penetration with this sheet metal pipe flashing.Nominal duct size: 14 in.Roof flashing for a round pipe penetrationVerify roof pitch, flashing base dimensions and...$124.99Qty in Cart: 0Quantity:Price:$124.99Subtotal: -
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14 x 14 in. Return Air Box Plenum for Grille
$54.99This 14 x 14 in. return air box forms a plenum behind a compatible return grille.Nominal face size: 14 x 14 in.For a ceiling or floor return installationPair with a suitable start collar and return...$54.99 -
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18 x 16 x 16 in. Sheet Metal Duct T-Wye, 45° Branch
$197.00This 18 x 16 x 16 in. sheet metal T-wye adds a 45° branch to a round HVAC duct run.Nominal openings: 18 in. x 16 in. x 16 in.Crimped outlet for joining compatible metal pipeUsed to branch air to...$197.00 -
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5 in. Round Sheet Metal Duct End Cap
$19.99Close the end of an unused 5 in. round duct run with this sheet metal end cap.Nominal duct size: 5 in.For terminating compatible round ductworkCheck whether the cap fits inside or over your duct and...$19.99 -
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5 x 4 in. Round Sheet Metal Duct Reducer
$20.99Connect two different round duct sizes with this 5 x 4 in. sheet metal reducer.Nominal connection sizes: 5 in. and 4 in.For transitioning between compatible round HVAC ductsConfirm both connection...$20.99