Atco FD-6X25-R8FB Flex Duct 6 in X 25 Ft R-8 Insulated

Product Description

The ATCO RUBBER PRODUCTS FD-6X25-R8FB is a 6-inch diameter, 25-foot flexible air duct with R-8 insulation, designed for low-to-medium operating pressure HVAC applications. The outer jacket is constructed from a tri-directional fiberglass scrim reinforced, metallized polyester material, providing structural integrity and vapor resistance. The inner core is air-tight and built to handle the demands of residential and light commercial duct systems. UL 181 Class 1 listed, this flex duct meets standard fire and smoke spread requirements for air duct installations in forced-air systems. Licensed HVAC technicians and sheet metal contractors are the primary installers of this product.

This flexible duct is suited for residential and light commercial forced-air HVAC systems where routing around obstructions or making final connections between rigid ductwork and supply registers is required. The R-8 insulation value makes it appropriate for unconditioned spaces such as attics and crawlspaces where thermal loss control is a priority. It is packaged in a single bag and ships as one unit, making it practical for single-zone or multi-zone installations requiring longer duct runs.

Key Features

• UL 181 Class 1 Air Duct listed for fire and smoke spread compliance
• Tri-directional fiberglass scrim reinforced metallized polyester outer jacket
• Air-tight inner core rated for low-to-medium operating pressures
• R-8 insulation value for use in unconditioned spaces
• 6-inch diameter x 25-foot length in a single bag unit

Compatibility

Designed as an OEM-style flexible duct replacement or new-install component for residential and light commercial forced-air HVAC systems requiring 6-inch diameter low-to-medium pressure supply or return duct connections.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with SMACNA guidelines, local mechanical codes, and UL 181 listed duct system requirements. Power down the air handler and close any associated dampers before making duct connections. Flex duct should be fully extended without compression or sharp bends, and all connections must be secured with listed clamps and mastic or UL 181-listed tape. Do not use standard cloth-backed duct tape as a primary seal on UL 181 Class 1 duct systems.

Technical Specifications

• Diameter: 6 inches
• Length: 25 feet
• Insulation Value: R-8
• Listing: UL 181 Class 1 Air Duct
• Outer Jacket Material: Tri-directional fiberglass scrim reinforced metallized polyester
• Package Length: 29 inches
• Package Width: 11 inches
• Package Height: 11 inches
• Weight: 13.7 pounds

Standard Information

• Brand: ATCO RUBBER PRODUCTS
• Manufacturer Part Number: FD-6X25-R8FB