Atco Rubber - 4002508 - 040 8" x 25' R4.2 Mobile Home Flexible Duct

Item Number: ATC4008  MFR Part Number: 04002508


8" x 25' R4.2 Mobile Home Flexible Duct
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Flexible Duct Systems
25’ Insulated UL 181 Class 1 Air Duct

UPC #040 - R-Value 4.2
UPC #046 - R-Value 6.0
UPC #048 - R-Value 8.0

Description: Atco #040, 046, and 048 are UL 181, Class 1 Air Ducts and are manufactured with a black, heavy-duty polyethylene jacket which complies with the HUD requirements for outdoor mobile home or modular home installation.
The UPC #040, #046, and #048's inner core is air-tight and is designed for low-to-medium operating pressures in HVAC systems.

Construction: A double lamination of tough polyester which encapsulates a steel wire helix forms the air-tight inner core. The double-layer core is wrapped in various thicknesses of fiberglass insulation blankets to provide the R-Value specific to each product. The core and insulation are reinforced with scrim, and sheathed in a rugged and durable black seamless polyethylene jacket.

Air-tight Inner Core - Energy efficient / No fiberglass erosion into air stream.
Encapsulated Wire Helix - No unraveling when cut to length / Quick installation
Smooth Inner Core - Low friction loss / Low operating cost.
Thick Blanket of Fiberglass Insulation - Energy efficient / Excellent thermal characteristics
Black, Heavy-Duty Polyethylene Jacket - Tear and puncture resistant / Low maintenance.
Lightweight Compact Carton - Reduces warehouse and Jobsite handling cost.

California residents: see Proposition 65 Warning

Weight11.2 Pounds (Lb)
Width10.5 Inches (In)
Height10.5 Inches (In)
Country of OriginUSA
Length29 Inches (In)
TierUPC #040
CertificationsUL Greenguard Gold
CompositionPolyethylene Vapor Barrier
Core MaterialBlack Polyester
Fire RatingPasses UL 181 Fire Tests
Inside Diameter8"
Maximum Air Flow5000 FPM
Maximum Pressure10" W.G.
Maximum Temperature250°F (121.1°C)
Operating Temperature-20°F to 250°F (-28.8°C to 121.1°C)
Pressure Rating4" w.g. pos., 8"-10" dia., 2" w.g. pos., 12"-14" dia., 3/4" w.g., all dia.
Warranty OfferedYes
ComplianceUL 181, Class 1 Air Connector
UL ListedYes
UL RecognizedYes