Flexduct 1065C R-8 Flex Air Duct 10 Inch X 25 Foot

Product Description

The FLEXDUCT 1065C is a UV-inhibited fiberglass flexible air duct designed for residential and light commercial HVAC distribution systems. Constructed with a black outer jacket that resists ultraviolet degradation, this flex duct is rated R-8 for thermal insulation, helping to minimize heat gain and loss across long duct runs. With a 10-inch inner diameter and a 25-foot length per bag, it covers substantial runs without mid-run splicing. Licensed HVAC technicians and sheet metal contractors install this product as part of supply or return air distribution systems connected to air handlers, furnaces, and heat pumps.

This flex duct is suited for both new construction and retrofit HVAC applications where a flexible, insulated duct run is needed between rigid trunk lines and supply or return registers. The R-8 insulation value makes it well matched for unconditioned spaces such as attics and crawlspaces where thermal efficiency is a priority. The black UV-inhibited outer jacket also makes it appropriate for installations with incidental sun exposure during construction or in partially open spaces.

Key Features

• R-8 fiberglass insulation rating reduces heat transfer in unconditioned spaces
• UV-inhibited black outer jacket resists degradation from sunlight exposure
• 10-inch inner diameter accommodates high-volume air distribution runs
• 25-foot length per package reduces the need for mid-run connections
• Flexible construction allows routing around structural obstacles without rigid fittings

Compatibility

Designed as an OEM-style replacement and new-installation flex duct for residential and light commercial HVAC supply and return air distribution systems requiring a 10-inch diameter flexible insulated duct.

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 handling equipment and confirm the system is de-energized before connecting or sealing duct sections. Secure each end with an approved draw band and mastic or UL 181B-rated tape — never use standard cloth duct tape. Avoid sharp bends that reduce the inner diameter and restrict airflow; maintain bend radii per manufacturer and code requirements.

Technical Specifications

• Insulation Rating: R-8
• Inner Diameter: 10 inches
• Length: 25 feet
• Insulation Material: Fiberglass
• Outer Jacket: UV-inhibited black

Standard Information

• Brand: FLEXDUCT
• Manufacturer Part Number: 1065C