Atco Rubber Products 36 Flex Metallic Duct 9 in R-6

Product Description

The ATCO RUBBER PRODUCTS 36 is a 9-inch flexible metalized duct with R-6 insulation, designed for use in residential and light commercial HVAC air distribution systems. This insulated flex duct connects air handlers, plenums, and branch takeoffs to supply registers and diffusers. The metalized outer jacket provides durability against puncture and moisture, while the R-6 insulation core reduces heat transfer and helps maintain conditioned airflow temperatures through unconditioned spaces such as attics and crawlspaces. Licensed HVAC technicians and sheet metal installers are the primary trades who work with this product.

This flexible duct is suited for residential forced-air heating and cooling systems as well as light commercial air distribution applications. It is commonly routed through attic spaces, suspended ceilings, and floor cavities where rigid ductwork is impractical. The 9-inch diameter accommodates moderate-volume branch runs and trunk extensions in standard residential installations. Its flexibility allows installers to navigate structural obstructions without the need for additional fittings.

Key Features

• 9-inch inner diameter for moderate airflow branch runs
• R-6 insulation value reduces heat gain and loss in unconditioned spaces
• Metalized outer jacket resists moisture and physical damage
• Flexible construction simplifies routing around structural obstacles
• Compatible with standard duct connectors, collars, and takeoffs

Compatibility

Designed as an OEM-style replacement and standard-installation flexible duct for residential and light commercial HVAC air distribution systems requiring a 9-inch insulated flex duct with R-6 thermal performance.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with ACCA Manual D and local mechanical codes. Power down the air handler and close the fuel shutoff or disconnect before beginning duct work in an active system. Secure both ends with approved clamps or mastic sealant per local code requirements, and avoid sharp bends that compress the inner liner and restrict airflow. Support the duct at intervals specified by the manufacturer and applicable mechanical codes to prevent sagging.

Technical Specifications

• Inner Diameter: 9 inches
• Insulation R-Value: R-6
• Jacket Type: Metalized

Standard Information

• Brand: ATCO RUBBER PRODUCTS
• Manufacturer Part Number: 36