Skip to main content

Contact our sales team for more information 860-221-SALE

Round Air Ducts 159

Search within Round Air Ducts

159 products — including out-of-stock

    Atco

    Item SKU - 13602520

    EDP - 1067790

    Case Quantity - 8

    In stock

    Overview

    ATCO #036 is UL 181, Class 1 Air Duct and is manufactured with a tri-directional fiberglass scrim reinforced, metallized polyester outer jacket. A double lamination of tough polyester, which encapsulates a steel wire helix, forms the air tight inner core of the ATCO #036. The double layer core is wrapped with a thick blanket of fiberglass insulation. The inner core of the ATCO #36 is air tight and designed for low to medium operating pressures in HVAC systems. ATCO #036 has increased insulation for superior thermal performance. ATCO #036, is designed for indoor use as a supply and return air duct in residential and commercial low to medium pressure heating and air conditioning systems. ATCO #36 can be used as a complete air duct system and/or a branch duct connecting to mixing boxes, diffusers, light troffers, room inlets, or other terminal devices.

    Features

    • Air Tight Inner Core: Energy efficient and leaves no fiberglass erosion into the air stream
    • Encapsulated Wire Helix: No unraveling when cut to length and makes for a quicker installation
    • Smooth Inner Core: Low friction loss and low operating cost
    • Highly Resistant to Mold Growth: Tested and listed to UL Environment's Standard UL2824
    • Certified for Low Chemical Emissions: Tested and certified to UL Environment's Standard UL2818
    • Certified Thermal Performance (R-Values): UL classified to air diffusion council test program
    • Tough Reinforced Metallized Polyester Jacket: Tear and puncture resistant with low maintenance
    • Formaldehyde Free: Made with Owens Corning Eco Touch Insulation

    Centrotherm

    Item SKU - IFVL04050

    EDP - 1189021

    In stock

    Manufactured from polypropylene. 4 in Flex features rigid sections every 2 ft. 4 in Flex can be field cut and are ideal for use in chimneys with offsets. The base of your 4 in Flex can be connected to InnoFlue® SW at any rigid section without a coupler. Flex to Flex couplers are available for extended runs. Centrotherm Eco Systems InnoFlue® Flexible Vent Length, 4 in ID x 4.3 in OD Dia, 50 ft Length, Polypropylene, Gray, Domestic

    Leonard

    Item SKU - MISID_1189027

    EDP - 1189027

    In stock

    Includes all the components necessary to line a chimney from chimney termination to base support excluding 3 in or 4 in Flex. 3 in or 4 in Flex, rigid vent lengths, elbows, and adaptors required to connect chimney kit base support to appliance and termination are sold separately. Centrotherm Eco Systems InnoFlue® Chimney Component Kit, Flex, 4 in Dia, Polypropylene, Domestic

    Atco

    Item SKU - 13102516

    EDP - 745836

    Case Quantity - 8

    In stock

    Overview

    ATCO #031 is UL 181, Class 1 Air Duct and is manufactured with a tri-directional fiberglass scrim reinforced, metallized polyester outer jacket. A double lamination of tough polyester, which encapsulates a steel wire helix, forms the air tight inner core of the ATCO #031. The double layer core is wrapped with a thick blanket of fiberglass insulation. The inner core of the ATCO #31 is air tight and designed for low to medium operating pressures in HVAC systems. ATCO #031 has increased insulation for superior thermal performance. ATCO #031, is designed for indoor use as a supply and return air duct in residential and commercial low to medium pressure heating and air conditioning systems. ATCO #31 can be used as a complete air duct system and/or a branch duct connecting to mixing boxes, diffusers, light troffers, room inlets, or other terminal devices.

    Features

    • Air Tight Inner Core: Energy efficient and leaves no fiberglass erosion into the air stream
    • Encapsulated Wire Helix: No unraveling when cut to length and makes for a quicker installation
    • Smooth Inner Core: Low friction loss and low operating cost
    • Highly Resistant to Mold Growth: Tested and listed to UL Environment's Standard UL2824
    • Certified for Low Chemical Emissions: Tested and certified to UL Environment's Standard UL2818
    • Certified Thermal Performance (R-Values): UL classified to air diffusion council test program
    • Tough Reinforced Metallized Polyester Jacket: Tear and puncture resistant with low maintenance
    • Formaldehyde Free: Made with Owens Corning Eco Touch Insulation

    Unico

    Item SKU - UPC-26TCR8-6

    EDP - 1206079

    Case Quantity - 6

    In stock

    Overview

    This is our sound attenuator flexible duct 2" inside diameter 6" outside diameter insulated to R8 with 2 vapor barriers. They come in a box quantity of 6 - 12' lengths with our Twist-Fit connectors on each end.

    Features

    • There are two styles of supply duct: Sound Attenuator tubing, sold in (also 3ft lengths) 12' lengths and Aluminum Core tubing, sold in 25' lengths
    • They are all available in R3.3, R4.2, R6 and R8 insulation (3ft duct only available in R3 and R4 right now)
    • Both styles of tubing can be cut to length as needed
    • The inner core layer of the tubing is either: Two-ply corrugated aluminum OR spun bound nylon
    • The outer jacket for all is made of a two-ply reinforced reflective mylar; providing a vapor seal to prevent leakage and moisture migration and increases the insulation factor by reducing the radiant heat transfer
    • A fiberglass blanket insulation then fills the void between the jacket and the core
    • The R3.3 and R4 duct have one insulation layer and vapor barrier
    • The R6 and R8 have two layers of insulation and a double vapor seal

    Atco

    Item SKU - 13602504

    EDP - 692417

    Case Quantity - 30

    In stock

    Overview

    ATCO #036 is UL 181, Class 1 Air Duct and is manufactured with a tri-directional fiberglass scrim reinforced, metallized polyester outer jacket. A double lamination of tough polyester, which encapsulates a steel wire helix, forms the air tight inner core of the ATCO #036. The double layer core is wrapped with a thick blanket of fiberglass insulation. The inner core of the ATCO #36 is air tight and designed for low to medium operating pressures in HVAC systems. ATCO #036 has increased insulation for superior thermal performance. ATCO #036, is designed for indoor use as a supply and return air duct in residential and commercial low to medium pressure heating and air conditioning systems. ATCO #36 can be used as a complete air duct system and/or a branch duct connecting to mixing boxes, diffusers, light troffers, room inlets, or other terminal devices.

    Features

    • Air Tight Inner Core: Energy efficient and leaves no fiberglass erosion into the air stream
    • Encapsulated Wire Helix: No unraveling when cut to length and makes for a quicker installation
    • Smooth Inner Core: Low friction loss and low operating cost
    • Highly Resistant to Mold Growth: Tested and listed to UL Environment's Standard UL2824
    • Certified for Low Chemical Emissions: Tested and certified to UL Environment's Standard UL2818
    • Certified Thermal Performance (R-Values): UL classified to air diffusion council test program
    • Tough Reinforced Metallized Polyester Jacket: Tear and puncture resistant with low maintenance
    • Formaldehyde Free: Made with Owens Corning Eco Touch Insulation

    Ipex Usa LLC - 233406

    Item SKU - 394001

    EDP - 1269136

    Case Quantity - 65

    In stock

    * 3" x 10' PVC GAS VENT PIPE

    Atco

    Item SKU - 13602505

    EDP - 745813

    Case Quantity - 30

    In stock

    Overview

    ATCO #036 is UL 181, Class 1 Air Duct and is manufactured with a tri-directional fiberglass scrim reinforced, metallized polyester outer jacket. A double lamination of tough polyester, which encapsulates a steel wire helix, forms the air tight inner core of the ATCO #036. The double layer core is wrapped with a thick blanket of fiberglass insulation. The inner core of the ATCO #36 is air tight and designed for low to medium operating pressures in HVAC systems. ATCO #036 has increased insulation for superior thermal performance. ATCO #036, is designed for indoor use as a supply and return air duct in residential and commercial low to medium pressure heating and air conditioning systems. ATCO #36 can be used as a complete air duct system and/or a branch duct connecting to mixing boxes, diffusers, light troffers, room inlets, or other terminal devices.

    Features

    • Air Tight Inner Core: Energy efficient and leaves no fiberglass erosion into the air stream
    • Encapsulated Wire Helix: No unraveling when cut to length and makes for a quicker installation
    • Smooth Inner Core: Low friction loss and low operating cost
    • Highly Resistant to Mold Growth: Tested and listed to UL Environment's Standard UL2824
    • Certified for Low Chemical Emissions: Tested and certified to UL Environment's Standard UL2818
    • Certified Thermal Performance (R-Values): UL classified to air diffusion council test program
    • Tough Reinforced Metallized Polyester Jacket: Tear and puncture resistant with low maintenance
    • Formaldehyde Free: Made with Owens Corning Eco Touch Insulation

    Atco

    Item SKU - 13602510

    EDP - 745819

    Case Quantity - 24

    In stock

    Overview

    ATCO #036 is UL 181, Class 1 Air Duct and is manufactured with a tri-directional fiberglass scrim reinforced, metallized polyester outer jacket. A double lamination of tough polyester, which encapsulates a steel wire helix, forms the air tight inner core of the ATCO #036. The double layer core is wrapped with a thick blanket of fiberglass insulation. The inner core of the ATCO #36 is air tight and designed for low to medium operating pressures in HVAC systems. ATCO #036 has increased insulation for superior thermal performance. ATCO #036, is designed for indoor use as a supply and return air duct in residential and commercial low to medium pressure heating and air conditioning systems. ATCO #36 can be used as a complete air duct system and/or a branch duct connecting to mixing boxes, diffusers, light troffers, room inlets, or other terminal devices.

    Features

    • Air Tight Inner Core: Energy efficient and leaves no fiberglass erosion into the air stream
    • Encapsulated Wire Helix: No unraveling when cut to length and makes for a quicker installation
    • Smooth Inner Core: Low friction loss and low operating cost
    • Highly Resistant to Mold Growth: Tested and listed to UL Environment's Standard UL2824
    • Certified for Low Chemical Emissions: Tested and certified to UL Environment's Standard UL2818
    • Certified Thermal Performance (R-Values): UL classified to air diffusion council test program
    • Tough Reinforced Metallized Polyester Jacket: Tear and puncture resistant with low maintenance
    • Formaldehyde Free: Made with Owens Corning Eco Touch Insulation

    Centrotherm

    Item SKU - ISVL0610-4

    EDP - 1197416

    Case Quantity - 4

    In stock

    Rigid polypropylene lengths with dedicated male and female ends. Female ends contain internal gasket and male ends can be field cut and chamfered to desired length. Centrotherm Eco Systems InnoFlue® Rigid Vent Length, Single Wall, 6 in ID x 7.2 in OD Dia, 124-1/4 in Length, Polypropylene, Gray, Domestic

    Unico

    Item SKU - UPC-26TCR6-6

    EDP - 1206075

    Case Quantity - 6

    In stock

    Overview

    This is our sound attenuator flexible duct 2" inside diameter 5" outside diameter insulated to R6 with 2 vapor barriers. They come in a 12' lengths with our Twist-Fit connectors on each end.

    Features

    • There are two styles of supply duct: Sound Attenuator tubing, sold in (also 3ft lengths) 12' lengths and Aluminum Core tubing, sold in 25' lengths
    • They are all available in R3.3, R4.2, R6 and R8 insulation (3ft duct only available in R3 and R4 right now)
    • Both styles of tubing can be cut to length as needed
    • The inner core layer of the tubing is either: Two-ply corrugated aluminum OR spun bound nylon
    • The outer jacket for all is made of a two-ply reinforced reflective mylar; providing a vapor seal to prevent leakage and moisture migration and increases the insulation factor by reducing the radiant heat transfer
    • A fiberglass blanket insulation then fills the void between the jacket and the core
    • The R3.3 and R4 duct have one insulation layer and vapor barrier
    • The R6 and R8 have two layers of insulation and a double vapor seal

    Atco

    Item SKU - 13102508

    EDP - 745826

    Case Quantity - 24

    In stock

    Overview

    ATCO #031 is UL 181, Class 1 Air Duct and is manufactured with a tri-directional fiberglass scrim reinforced, metallized polyester outer jacket. A double lamination of tough polyester, which encapsulates a steel wire helix, forms the air tight inner core of the ATCO #031. The double layer core is wrapped with a thick blanket of fiberglass insulation. The inner core of the ATCO #31 is air tight and designed for low to medium operating pressures in HVAC systems. ATCO #031 has increased insulation for superior thermal performance. ATCO #031, is designed for indoor use as a supply and return air duct in residential and commercial low to medium pressure heating and air conditioning systems. ATCO #31 can be used as a complete air duct system and/or a branch duct connecting to mixing boxes, diffusers, light troffers, room inlets, or other terminal devices.

    Features

    • Air Tight Inner Core: Energy efficient and leaves no fiberglass erosion into the air stream
    • Encapsulated Wire Helix: No unraveling when cut to length and makes for a quicker installation
    • Smooth Inner Core: Low friction loss and low operating cost
    • Highly Resistant to Mold Growth: Tested and listed to UL Environment's Standard UL2824
    • Certified for Low Chemical Emissions: Tested and certified to UL Environment's Standard UL2818
    • Certified Thermal Performance (R-Values): UL classified to air diffusion council test program
    • Tough Reinforced Metallized Polyester Jacket: Tear and puncture resistant with low maintenance
    • Formaldehyde Free: Made with Owens Corning Eco Touch Insulation

    Atco

    Item SKU - 13102505

    EDP - 745823

    Case Quantity - 24

    In stock

    Overview

    ATCO #031 is UL 181, Class 1 Air Duct and is manufactured with a tri-directional fiberglass scrim reinforced, metallized polyester outer jacket. A double lamination of tough polyester, which encapsulates a steel wire helix, forms the air tight inner core of the ATCO #031. The double layer core is wrapped with a thick blanket of fiberglass insulation. The inner core of the ATCO #31 is air tight and designed for low to medium operating pressures in HVAC systems. ATCO #031 has increased insulation for superior thermal performance. ATCO #031, is designed for indoor use as a supply and return air duct in residential and commercial low to medium pressure heating and air conditioning systems. ATCO #31 can be used as a complete air duct system and/or a branch duct connecting to mixing boxes, diffusers, light troffers, room inlets, or other terminal devices.

    Features

    • Air Tight Inner Core: Energy efficient and leaves no fiberglass erosion into the air stream
    • Encapsulated Wire Helix: No unraveling when cut to length and makes for a quicker installation
    • Smooth Inner Core: Low friction loss and low operating cost
    • Highly Resistant to Mold Growth: Tested and listed to UL Environment's Standard UL2824
    • Certified for Low Chemical Emissions: Tested and certified to UL Environment's Standard UL2818
    • Certified Thermal Performance (R-Values): UL classified to air diffusion council test program
    • Tough Reinforced Metallized Polyester Jacket: Tear and puncture resistant with low maintenance
    • Formaldehyde Free: Made with Owens Corning Eco Touch Insulation

    Atco

    Item SKU - 13602512

    EDP - 745820

    Case Quantity - 15

    In stock

    Overview

    ATCO #036 is UL 181, Class 1 Air Duct and is manufactured with a tri-directional fiberglass scrim reinforced, metallized polyester outer jacket. A double lamination of tough polyester, which encapsulates a steel wire helix, forms the air tight inner core of the ATCO #036. The double layer core is wrapped with a thick blanket of fiberglass insulation. The inner core of the ATCO #36 is air tight and designed for low to medium operating pressures in HVAC systems. ATCO #036 has increased insulation for superior thermal performance. ATCO #036, is designed for indoor use as a supply and return air duct in residential and commercial low to medium pressure heating and air conditioning systems. ATCO #36 can be used as a complete air duct system and/or a branch duct connecting to mixing boxes, diffusers, light troffers, room inlets, or other terminal devices.

    Features

    • Air Tight Inner Core: Energy efficient and leaves no fiberglass erosion into the air stream
    • Encapsulated Wire Helix: No unraveling when cut to length and makes for a quicker installation
    • Smooth Inner Core: Low friction loss and low operating cost
    • Highly Resistant to Mold Growth: Tested and listed to UL Environment's Standard UL2824
    • Certified for Low Chemical Emissions: Tested and certified to UL Environment's Standard UL2818
    • Certified Thermal Performance (R-Values): UL classified to air diffusion council test program
    • Tough Reinforced Metallized Polyester Jacket: Tear and puncture resistant with low maintenance
    • Formaldehyde Free: Made with Owens Corning Eco Touch Insulation

    Atco

    Item SKU - 05102506

    EDP - 331548

    In stock

    Overview

    ATCO's UPC #050 is a UL 181 Class 1 Air Connector which meets the requirements of NFPA (90A & 90B). UPC #050 is manufactured with a tough triple ply duct wall construction. 25' lengths, which can be easily cut to desired length, are compressed and packed in small, easy to store cartons. The UPC #050 is air tight and is designed for low to medium operating pressures in HVAC systems. A triple lamination of tough metallized polyester, aluminum foil and polyester encapsulates a steel wire helix and forms the air tight uninsulated flexible duct of ATCO's #050. UPC #050 is used as a supply, return and exhaust duct in low to medium pressure heating, air conditioning and exhaust systems. ATCO's UPC #050 can be used in an air distribution system, connecting ducts, mixing boxes, diffusers, light troffers, room inlets or other terminal devices where an uninsulated flexible air connector is required. ATCO's UPC #050 hould not be used to vent appliances for cooking, heating and clothes drying unless approved and recommended by the appliance manufacturer.

    Features

    • Durable Metalized Polyester, Aluminum Foil and Polyester Laminate Construction: Tear and puncture resistant
    • Flexible and Maintains Shape: Easily handled and installed for low labor cost
    • Air Tight: For energy efficiency
    • Encapsulated Wire Helix: No unraveling when cut to length allowing quick installation
    • Smooth Inner Core: Provides low friction loss and low operating cost

    Centrotherm

    Item SKU - 250400502422

    EDP - 1201306

    Case Quantity - 2

    In stock

    Rigid polypropylene lengths with dedicated male and female ends. Female ends contain internal gasket and male ends can be field cut and chamfered to desired length. Centrotherm Eco Systems InnoFlue® Rigid Vent Length, Single Wall, 8 in ID x 8.8 in OD Dia, 124-1/2 in Length, Polypropylene, Gray, Domestic

    Centrotherm

    Item SKU - IFCK0335

    EDP - 1074815

    In stock

    Overview

    Includes all the components necessary to line a chimney from chimney termination to base support. Rigid vent lengths, elbows, and adaptors required to connect chimney kit base support to appliance and termination are sold separately.

    Kit Contains:

    • Base Support
    • SW to Flex Coupler
    • Flex Vent Length
    • Flex End Pipe
    • Chimney Cover
    • Connector Rings
    • Spacers
    • Centrocerin(R) Lubricant

    Atco

    Item SKU - 13102504

    EDP - 731826

    Case Quantity - 24

    In stock

    Overview

    ATCO #031 is UL 181, Class 1 Air Duct and is manufactured with a tri-directional fiberglass scrim reinforced, metallized polyester outer jacket. A double lamination of tough polyester, which encapsulates a steel wire helix, forms the air tight inner core of the ATCO #031. The double layer core is wrapped with a thick blanket of fiberglass insulation. The inner core of the ATCO #31 is air tight and designed for low to medium operating pressures in HVAC systems. ATCO #031 has increased insulation for superior thermal performance. ATCO #031, is designed for indoor use as a supply and return air duct in residential and commercial low to medium pressure heating and air conditioning systems. ATCO #31 can be used as a complete air duct system and/or a branch duct connecting to mixing boxes, diffusers, light troffers, room inlets, or other terminal devices.

    Features

    • Air Tight Inner Core: Energy efficient and leaves no fiberglass erosion into the air stream
    • Encapsulated Wire Helix: No unraveling when cut to length and makes for a quicker installation
    • Smooth Inner Core: Low friction loss and low operating cost
    • Highly Resistant to Mold Growth: Tested and listed to UL Environment's Standard UL2824
    • Certified for Low Chemical Emissions: Tested and certified to UL Environment's Standard UL2818
    • Certified Thermal Performance (R-Values): UL classified to air diffusion council test program
    • Tough Reinforced Metallized Polyester Jacket: Tear and puncture resistant with low maintenance
    • Formaldehyde Free: Made with Owens Corning Eco Touch Insulation