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    50 Products

    Standard Duct and Fittings

    Image of System. Front orientation. Exploded view. Duct and Fittings. Standard Duct and Fittings.
    Deliver air for a range of HVAC applications, including exhaust and dust collection. Our basic duct, the round shape creates smoother, more efficient airflow than rectangular and oval duct. The male end is slightly smaller than the female, so sections join without clamps or tools.
    End Caps
    Image of Product. Front orientation. Duct and Fittings. Standard Duct and Fittings, End Caps, Male.

    Male

    Image of Product. Front orientation. Duct and Fittings. Standard Duct and Fittings, End Caps, Female.

    Female

    Cover unused duct openings to prevent air from leaking, dust from escaping, and debris from entering. End caps are often used to seal duct after changes to your system or equipment. To make modifications or expand your line, remove the cap.
    Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.
    Galvanized Steel
    Duct
    Size
    ID
    OD
    Ga.
    Each
    Male
    18—17 7/8"2417135K42000000
    20—19 7/8"2417135K4300000
    22—21 7/8"2417135K4400000
    24—23 7/8"2417135K4500000
     
    Female
    2020"—2417135K3300000
    2222"—2417135K3400000
    2424"—2417135K3500000
     

    Spiral Duct and Fittings

    Image of System. Front orientation. Contains MultipleImages. Duct and Fittings. Spiral Duct and Fittings.
    Reinforced with a continuous seam, this duct keeps its shape, even against suction from dust collection systems. On the inside, duct is smooth for efficient airflow. Because of its attractive look, spiral duct is often used for exposed heating and cooling systems.
    End Caps
    Image of Product. Front orientation. Duct and Fittings. Spiral Duct and Fittings, End Caps.
    Cover unused duct openings to prevent air from leaking, dust from escaping, and debris from entering. End caps are often used to seal duct after changes to your system or equipment. To make modifications or expand your line, remove the cap.
    Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.
    Corrosion-Resistant 304 Stainless Steel—The most corrosion-resistant metal duct we sell. It won’t rust or degrade in systems that exhaust chemical fumes or vent heat from industrial ovens and dryers.
    Galvanized Steel
    Corrosion-Resistant
    304 Stainless Steel
    Duct
    Size
    OD
    Ga.
    Each
    Ga.
    Each
    32 7/8"245078K33000000242561K197000000
    43 7/8"245078K3500000242561K2400000
    54 7/8"245078K3600000242561K19800000
    65 7/8"245078K3800000242561K2500000
    76 7/8"245078K35800000242561K19900000
    87 7/8"245078K3900000242561K2600000
    98 7/8"245078K35900000242561K20100000
    109 7/8"245078K4100000242561K2700000
    1211 7/8"245078K4200000242561K20200000
    1413 7/8"245078K8500000242561K203000000
    1615 7/8"245078K8600000242561K204000000
    1817 7/8"————0242561K205000000
    2019 7/8"245078K36200000242561K206000000
    2221 7/8"245078K36300000————0
    2423 7/8"245078K36400000————0

    Tight-Seal Spiral Duct and Fittings

    Image of System. Front orientation. Contains MultipleImages. Duct and Fittings. Tight-Seal Spiral Duct and Fittings.
    Gasketed fittings prevent leaks between connections without the need for tape or other sealants. Duct has a continuous seam that reinforces it for strength and long life. The rigid construction keeps its shape, even against suction from dust collectors. Duct is smooth on the inside for efficient airflow. Because of its attractive look, spiral duct is often used for exposed heating and cooling systems.
    End Caps
    Image of Product. Front orientation. Duct and Fittings. Tight-Seal Spiral Duct and Fittings, End Caps.
    Cover unused duct openings to prevent air from leaking, dust from escaping, and debris from entering. End caps are often used to seal duct after changes to your system or equipment. To make modifications or expand your line, remove the cap.
    Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.
    Galvanized Steel
    with EPDM Gasket
    Duct
    Size
    OD
    Ga.
    Each
    43 7/8"242226K32000000
    65 7/8"242226K3300000
    87 7/8"242226K3400000
    109 7/8"242226K3500000
    1211 7/8"242226K3600000

    Duct Vent Caps

    Image of Product. Front orientation. Duct and Fittings. Duct Vent Caps, Wall Mount.
    Image of Product. Front orientation. Duct and Fittings. Duct Vent Caps, Sloped Roof Mount.

    Wall Mount

    Sloped Roof Mount

    Cover wall and roof vents to prevent cold air and debris from entering your system. These caps have damper to reduce backdrafts and a screen that blocks birds from sneaking in.
    Painted Steel—Strong for a long life, these caps have a black finish to prevent rust.
    For
    Duct
    Mounting
    Painted Steel
    Ht.
    Wd.
    Dia.
    Ht.
    Wd.
    Lg.
    Fasteners
    Included
    Hole Dia.
    Color
    Each
    Wall Mount
     
    For Rectangular Duct
    10"3 1/4"—5 5/8"12 3/4"8 7/8"No3/16"Black6904K36000000
     
    Sloped Roof Mount
     
    For Rectangular and Round Duct
    10"3 1/4"8"6 5/8"14 1/4"18 3/4"——Black6904K3400000
     

    Barometric Draft Dampers

    Image of Product. Front orientation. Barometric Draft Dampers.
    These dampers improve furnace performance by automatically opening and closing to maintain a consistent airflow despite changing environmental conditions.
    Single-Acting Damper—Single-acting dampers open inward to prevent strong drafts from pulling too much heat into the chimney vent.
    Double-Acting Damper—Double-acting dampers open both inward and outward to relieve pressure caused by obstructions and downdrafts.
    Steel
    Draft Damper Type
    For Duct
    Size
    Ga.
    For System Type
    Fitting
    Connection
    Each
    Single Acting7, 8, 924Coal, OilPress Fit1782K240000000
    Single Acting, Double Acting9, 1024Coal, Natural Gas, Oil, PropanePress Fit1782K13000000
    Single Acting, Double Acting11, 1224Coal, Natural Gas, Oil, PropanePress Fit1782K14000000

    Automatic Airflow Dampers

    Image of Product. Front orientation. Duct Airflow Dampers. Automatic Airflow Dampers.
    Keep temperatures comfortable while saving energy. Control these dampers with a switch or thermostat so you’re only heating and cooling the areas that need it.
    Galvanized Steel—Strong and corrosion resistant, galvanized steel is the most commonly used ductwork material.
    Overall
    Galvanized Steel
    Duct
    Size
    ID
    OD
    Ht.
    Wd.
    Electrical
    Connection Type
    Voltage,
    V AC
    Ga.
    Each
    55"4 7/8"9 1/4"7"Hardwire24241179N150000000
    66"5 7/8"10 1/4"8"Hardwire24241179N16000000
    88"7 7/8"12 1/4"10"Hardwire24241179N18000000
    1010"9 7/8"14 1/4"12"Hardwire24241179N21000000
    1212"11 7/8"16 1/4"14"Hardwire24241179N22000000

    Airflow Dampers

    Image of Product. Front orientation. Duct Airflow Dampers. Airflow Dampers, Blade Airflow Damper.

    Blade Airflow

    Damper

    The simplest, most reliable way to regulate airflow in standard duct. Turn the lever to adjust the blade.
    Blade Airflow Damper—The most economical choice, these dampers slide into the end of duct. Drill a hole for the damper's bolt and remove the handle. Place the damper inside duct, insert the bolt through the hole, and reattach the handle.
    Galvanized Steel—Strong and corrosion resistant, galvanized steel is the most commonly used ductwork material.
    Galvanized Steel
    Duct
    Size
    Dia.
    Ga.
    Each
    Blade Airflow Damper
    1414"243996K35000000
     
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