Hart Cooley 11000812 Flex Duct Sleeve 12in X 5ft R-8.0

Product Description

The HART COOLEY 11000812 is a pre-insulated flexible duct sleeve designed for use in residential and light commercial HVAC venting applications. Measuring 12 inches in diameter and 5 feet in length, it features an R-8.0 formaldehyde-free insulation core wrapped in a metalized polyester jacket. The coreless design allows technicians to slide the sleeve over existing ductwork or flexible duct sections to add insulation value where needed. It is installed by licensed HVAC contractors during new construction, renovation, or duct system upgrades where insulated transitions or duct wrap solutions are required.

This sleeve is suited for HVAC venting installations where thermal efficiency and condensation control are critical. The 12-inch diameter accommodates larger trunk runs or main supply and return duct sections. The 5-foot length provides a manageable section for field cutting and fitting. The formaldehyde-free insulation meets current indoor air quality standards and is appropriate for occupied residential and commercial spaces.

Key Features

• R-8.0 insulation value for effective thermal performance in HVAC duct systems
• 12-inch diameter fits larger supply and return duct runs
• 5-foot length allows field trimming to suit specific installation dimensions
• Metalized polyester jacket provides vapor barrier protection and durability
• Coreless construction slides over existing duct sections for straightforward retrofits
• Formaldehyde-free insulation suitable for occupied residential and commercial spaces

Compatibility

Designed as an OEM-style insulated sleeve for 12-inch round flexible or rigid duct in HVAC venting applications.

Installation Notes

Installation is performed by licensed HVAC technicians. Power down the air handling system and verify the duct system is depressurized before beginning work. The sleeve should be secured at both ends with approved duct tape or metal-band fasteners per local mechanical code requirements. Avoid compressing the insulation during installation, as compression reduces the effective R-value.