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 x 8 x 7 in. Ceiling Register Box, 7 in. Round Duct Connection
$28.99Connect a 8 x 8 in. register opening to 7 in. round HVAC supply duct with this ceiling register box.Register opening: 8 x 8 in.Round duct connection: 7 in.Sheet metal register bootMeasure the...$28.99 -
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20 in. x 36 in. Snap-Lock Round HVAC Duct Pipe
$141.99Build a straight round duct run with this 20 in. diameter, 36 in. long snap-lock sheet metal pipe.Nominal diameter: 20 in.Length: 36 in.Ships flat/unsnapped for assembly at the jobsiteSnap together,...$141.99 -
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9 in. Round Sheet Metal Flexible Duct Connector
$19.99Join a 9 in. flexible duct run to compatible sheet metal ductwork with this round connector.Nominal connection size: 9 in.Sheet metal fitting for a flexible duct connectionConfirm the connector...$19.99 -
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8 x 8 x 6 in. Galvanized Duct T-Wye, 45° Branch
$49.00This 8 x 8 x 6 in. sheet metal T-wye adds a 45° branch to a round HVAC duct run.Nominal openings: 8 in. x 8 in. x 6 in.Crimped outlet for joining compatible metal pipeUsed to branch air to another...$49.00 -
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8 in. Round Sheet Metal Flexible Duct Connector
$18.99Join a 8 in. flexible duct run to compatible sheet metal ductwork with this round connector.Nominal connection size: 8 in.Sheet metal fitting for a flexible duct connectionConfirm the connector...$18.99 -
14 x 14 x 10 in. Galvanized Duct T-Wye, 45° Branch
$99.00This 14 x 14 x 10 in. sheet metal T-wye adds a 45° branch to a round HVAC duct run.Nominal openings: 14 in. x 14 in. x 10 in.Crimped outlet for joining compatible metal pipeUsed to branch air to...$99.00 -
20 in. Evaporative Cooler Pyramid Diffuser with Hanging Straps
$108.99Distribute air from a 20 in. evaporative cooler duct connection with this pyramid diffuser.Nominal connection size: 20 in.Hanging straps listed as includedConfirm the inlet dimension, mounting height...$108.99Qty in Cart: 0Quantity:Price:$108.99Subtotal: -
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6 x 6 x 4 in. Side-Outlet Ceiling Register Box, 4 in. Round Duct Connection
$34.99Connect a 6 x 6 in. register opening to 4 in. round HVAC supply duct with this side-outlet ceiling register box.Register opening: 6 x 6 in.Round duct connection: 4 in.Side outletMeasure the register...$34.99 -
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8 x 8 x 6 in. Side-Outlet Ceiling Register Box, 6 in. Round Duct Connection
$39.99Connect a 8 x 8 in. register opening to 6 in. round HVAC supply duct with this side-outlet ceiling register box.Register opening: 8 x 8 in.Round duct connection: 6 in.Side outletMeasure the register...$39.99 -
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20 in. Tabbed Round Duct Start Collar, Snap-Together Sheet Metal
$19.99Add a 20 in. round duct takeoff with this tabbed, snap-together sheet metal start collar.Nominal duct size: 20 in.Tabbed mounting edgeSnap-together constructionConfirm opening size and the...$19.99 -
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12 x 12 x 12 in. Galvanized Duct T-Wye, 45° Branch
$89.00This 12 x 12 x 12 in. sheet metal T-wye adds a 45° branch to a round HVAC duct run.Nominal openings: 12 in. x 12 in. x 12 in.Crimped outlet for joining compatible metal pipeUsed to branch air to...$89.00 -
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10 x 10 x 10 in. Ceiling Register Box, 10 in. Round Duct Connection
$31.99Connect a 10 x 10 in. register opening to 10 in. round HVAC supply duct with this ceiling register box.Register opening: 10 x 10 in.Round duct connection: 10 in.Sheet metal register bootMeasure the...$31.99