12” Insulated Flex Duct – R8
$136.7512 Inch Insulated Flex Duct R8 is a 25-foot flexible air duct designed for residential and light commercial HVAC systems. It features R8 fiberglass insulation, a reinforced flexible inner core, and a durable silver vapor barrier to support efficient supply or return airflow.
- Nominal diameter: 12 inches
- Overall length: 25 feet
- Insulation rating: R8
- Fiberglass insulation
- Reinforced flexible inner core
- Silver outer vapor barrier
- Suitable for supply and return-air systems
12” Insulated Flex Duct – R6
$112.4512 Inch Insulated Flex Duct R6 provides a flexible air-distribution solution for compatible residential and light commercial HVAC systems. Its reinforced inner core, R6 fiberglass insulation and durable vapor barrier support reliable supply or return airflow.
- Nominal diameter: 12 inches
- Length: 25 feet
- Insulation rating: R6
- Fiberglass thermal insulation
- Reinforced flexible inner core
- Durable exterior vapor barrier
- Suitable for compatible supply and return systems
4-Inch 90-Degree Elbow (Model 4BVL90)
$72.11Safely route exhaust gases from your heating equipment with the professional-grade 4-Inch 90-Degree Elbow (4BVL90). Designed for Type B gas vent systems, this double-wall elbow allows for secure and efficient directional changes in tight spaces.
- Size: 4-inch inner diameter.
- Design: 90-degree angle for precise vent routing.
- Safety: Double-wall construction maintains safe clearances to combustibles.
- Application: Ideal for gas furnaces, boilers, and water heaters.
507DR89 – 9” Start Collar w/ Damper
$21.08507DR89 9 Inch Start Collar with Damper creates a dependable connection between a compatible HVAC plenum or ductboard surface and 9-inch round ductwork. Its integrated damper allows convenient airflow adjustment during system balancing.
- Model: 507DR89
- Nominal diameter: 9 inches
- 30-gauge galvanized steel construction
- Integrated airflow damper
- Connects compatible round HVAC ductwork
- Professional installation recommended
14” Turning Vane R6
$53.3714 Inch Turning Vane R6 is an insulated HVAC duct fitting designed to redirect air while supporting smooth and efficient airflow. Its R6 insulation helps reduce heat transfer and makes it suitable for residential air-distribution installations.
- Nominal 14-inch HVAC duct connection
- R6 insulated construction
- Designed to redirect airflow efficiently
- Helps reduce turbulence around duct transitions
- Suitable for residential HVAC duct systems
- Professional installation recommended
Supply Plenum R8 16 x 21 x 36
$176.11Supply Plenum R8 16 x 21 x 36 is an insulated galvanized-metal plenum designed to connect compatible indoor HVAC equipment with the supply duct system. Its R8 insulation and 26-gauge construction support dependable air distribution.
- Measures 16 x 21 x 36 inches
- R8 insulated construction
- 26-gauge galvanized metal
- Knocked-down design for assembly
- Silver exterior finish
- Made in the USA
- Designed for HVAC supply-air applications
Return Plenum 12.5x20x36
$219.62Return Plenum 12.5x20x36 provides a strong and organized return-air connection for compatible residential HVAC equipment. Its four-piece construction uses two L-shaped side sections and beaded panels for additional structural strength.
- Measures 12.5 x 20 x 36 inches
- Designed for HVAC return-air applications
- Four-piece assembly
- Two L-shaped side sections
- Beaded for added strength
- Suitable for compatible residential equipment
16” Start Collar w/ Damper
$29.95507DR816 16 Inch Start Collar with Damper provides a dependable transition from compatible ductboard to 16-inch round HVAC ductwork. It features durable 28-gauge galvanized steel construction and an integrated damper for convenient airflow adjustment.
- 16-inch round duct connection
- Integrated airflow-control damper
- 28-gauge galvanized steel construction
- Compatible with 1.5-inch and 2-inch ductboard
- Suitable for residential HVAC applications
- Professional installation recommended
4” Storm Collar
$4.434 Inch Storm Collar helps protect the area where a compatible 4-inch vent pipe passes through a roof flashing. It fits around the pipe above the flashing to help direct rainwater away from the roof penetration.
- Designed for compatible 4-inch vent pipe
- Helps protect roof penetrations from rainwater
- Installs above a compatible roof flashing
- Durable metal construction
- Suitable for approved exterior vent applications
- Professional installation recommended
507DR814 – 14” Start Collar w/ Damper
$14.68507DR814 14 Inch Start Collar with Damper creates a dependable connection between a compatible HVAC mounting surface and 14-inch round ductwork. Its integrated damper allows convenient airflow adjustment during system setup and balancing.
- Model: 507DR814
- Nominal diameter: 14 inches
- Galvanized steel construction
- Integrated airflow damper
- Connects compatible round HVAC ductwork
- Professional installation recommended
7” Insulated Flex Duct – R6
$66.557 Inch Insulated Flex Duct R6 provides a flexible and insulated air-distribution solution for compatible residential and light commercial HVAC systems. Its 25-foot length, reinforced inner core, fiberglass insulation and durable vapor barrier support reliable supply or return airflow.
- Nominal diameter: 7 inches
- Length: 25 feet
- Insulation rating: R6
- Fiberglass thermal insulation
- Reinforced flexible inner core
- Durable exterior vapor barrier
- Suitable for compatible supply and return systems
16 Inch Insulated Flex Duct R6
$168.13The 16 Inch Insulated Flex Duct R6 is a premium solution for residential and light commercial HVAC systems. It features R6 fiberglass insulation, a reinforced inner core and a durable silver vapor barrier for reliable airflow and easier installation.
507DR812 – 12” Start Collar w/ Damper
$20.97507DR812 12 Inch Start Collar with Damper creates a dependable connection between compatible ductboard and 12-inch round HVAC ductwork. Its integrated damper allows convenient airflow adjustment during system setup and balancing.
- Model: 507DR812
- Nominal diameter: 12 inches
- Designed for 1½″ or 2″ ductboard
- Galvanized steel construction
- Integrated airflow damper
- Professional installation recommended
16” Insulated Flex Duct – R8
$234.5216 Inch Insulated Flex Duct R8 is a 25-foot flexible air duct designed for residential and light commercial HVAC systems. It features R8 fiberglass insulation, a reinforced flexible inner core, and a durable silver vapor barrier for compatible supply and return-air applications.
- Nominal diameter: 16 inches
- Overall length: 25 feet
- Insulation rating: R8
- Fiberglass insulation
- Reinforced flexible inner core
- Heavy-duty silver vapor barrier
- Suitable for supply and return-air systems
507DR810 – 10” Start Collar w/ Damper
$19.75507DR810 10 Inch Start Collar with Damper creates a dependable connection between a compatible HVAC mounting surface and 10-inch round ductwork. Its integrated damper allows convenient airflow adjustment during system setup and balancing.
- Model: 507DR810
- Nominal diameter: 10 inches
- Designed for compatible 1″ or 1½″ mounting material
- Integrated airflow damper
- Connects compatible round HVAC ductwork
- Professional installation recommended
6” Insulated Flex Duct – R6
$59.51Upgrade your residential or light commercial air distribution system with our high-efficiency 6″ insulated flex duct R6. Engineered for maximum thermal retention and reliable airflow, this flexible HVAC ducting features a reinforced inner core, thick thermal fiberglass insulation, and a heavy-duty vapor barrier to prevent energy loss and condensation in challenging installation environments.
- Thermal Efficiency: Insulated with high-quality R6 fiberglass to significantly reduce heat loss and thermal transfer in unconditioned spaces like attics and crawlspaces.
- Durable Construction: Built with a reinforced flexible inner core that resists kinking and crushing, ensuring consistent airflow and system pressure.
- Moisture Protection: Features a resilient heavy-duty outer vapor barrier jacket that effectively prevents condensation buildup and protects against environmental damage.
- Flexible Installation: Designed for easy routing through tight ceiling cavities and complex framing, speeding up installation times for professional contractors.
Return Plenum 12.5×23.125×48
$219.62Plenums that precisely fit equipment from leading manufacturers. We offer options to customize our plenums to meet the demands of markets nationwide, including:
- 12.5″ x 23″ x 48″
- Two-piece L-shaped side construction
- Four-piece construction
- Beaded for added strength
Supply Plenum R6 19 1/2 x 19 3/4 x 36
$237.73Supply Plenum R6 19 1/2 x 19 3/4 x 36 is an insulated HVAC air-distribution component designed to connect compatible indoor equipment with the supply duct system. Its R6 insulation helps reduce unwanted heat transfer and supports dependable airflow.
- 19 1/2 x 19 3/4-inch connection dimensions
- 36-inch overall length
- R6 insulated construction
- Designed for HVAC supply-air applications
- Supports efficient air distribution
- Suitable for compatible residential systems
8” Start Collar w/ Damper
$13.79507DR88 8 Inch Start Collar with Damper creates a dependable connection between compatible ductboard and 8-inch round HVAC ductwork. Its integrated damper helps regulate airflow through the connected duct branch.
- Model: 507DR88
- Nominal diameter: 8 inches
- Designed for 1½″ or 2″ ductboard
- Integrated airflow damper
- Connects compatible round HVAC ductwork
- Professional installation recommended
Supply Plenum R8 16 x 22 3/4 x 36
$195.28Supply Plenum R8 16 x 22 3/4 x 36 is an insulated galvanized-metal plenum designed to connect compatible indoor HVAC equipment with the supply duct system. Its R8 insulation and 26-gauge construction support dependable air distribution.
- Measures 16 x 22 3/4 x 36 inches
- R8 insulated construction
- 26-gauge galvanized metal
- Knocked-down design for assembly
- Silver exterior finish
- Made in the USA
- Designed for HVAC supply-air applications
8” Insulated Flex Duct – R8
$90.868 Inch Insulated Flex Duct R8 is a 25-foot flexible air duct designed for residential and light commercial HVAC systems. It combines fiberglass insulation, a reinforced inner core, and a durable silver vapor-barrier jacket to support efficient supply or return airflow.
- Nominal diameter: 8 inches
- Length: 25 feet
- Insulation rating: R8
- Fiberglass insulation
- Reinforced flexible inner core
- Silver outer vapor barrier
- Suitable for supply and return-air applications
Supply Plenum R8 16 x 19 3/4 x 48
$218.78Supply Plenum R8 16 x 19 3/4 x 48 is an insulated galvanized-metal plenum designed to connect compatible indoor HVAC equipment with the supply duct system. Its R8 insulation and 26-gauge construction support dependable air distribution.
- Measures 16 x 19 3/4 x 48 inches
- R8 insulated construction
- 26-gauge galvanized metal
- Knocked-down design for assembly
- Silver exterior finish
- Made in the USA
- Designed for HVAC supply-air applications
4” Dryer Vent Outlet
$19.254 Inch Dryer Vent provides an exterior outlet for a compatible residential clothes dryer exhaust system. It helps discharge warm, moisture-filled air and lint outdoors when properly connected to approved 4-inch dryer ductwork.
- Nominal 4-inch dryer duct connection
- Designed for exterior dryer exhaust applications
- Helps discharge heat, moisture and lint outdoors
- Compatible with properly sized dryer vent duct
- Suitable for residential clothes dryers
- Professional installation recommended
Return Plenum 12.5x16x36
$131.85Return Plenum 12.5x16x36 provides a strong and organized return-air connection for compatible residential HVAC equipment. Its four-piece construction uses two L-shaped side sections and beaded panels for added structural strength.
- Measures 12.5 x 16 x 36 inches
- Designed for HVAC return-air applications
- Four-piece assembly
- Two L-shaped side sections
- Beaded for additional strength
- Suitable for compatible residential equipment
Full range of ducting and venting components for residential HVAC. Flexible and rigid solutions for air delivery and ventilation.

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