Hart Cooley 553276 F208 Series R8 Polyester Duct Sleeve 5 Inch Diameter 5 Foot Length

Product Description

The Hart Cooley 553276 is an R8 polyester duct sleeve from the F208 Series, designed for use in residential and light commercial HVAC duct systems. This flexible duct sleeve measures 5 inches in diameter and 5 feet in length, making it a practical solution for connecting, extending, or transitioning flexible ductwork runs in forced air heating and cooling systems. HVAC technicians rely on duct sleeves like this one to create smooth, airtight transitions between sections of flexible duct, reducing air leakage and maintaining system efficiency. The polyester construction provides durability and resistance to tearing during installation, while the R8 insulation rating helps minimize heat loss and heat gain through the duct wall. An R-Value of 8 meets or exceeds the insulation requirements set by many local energy codes for duct systems located in unconditioned spaces such as attics, crawlspaces, and basements. Proper duct insulation directly impacts HVAC system efficiency, comfort levels, and energy costs. By using a high R-Value sleeve, installers help ensure that conditioned air reaches its destination at the intended temperature rather than losing energy through the duct wall. The F208 Series is a well-known line of flexible duct accessories from Hart Cooley, a trusted name among HVAC professionals and sheet metal contractors. This sleeve is compatible with standard flexible duct systems and is straightforward to install, cutting cleanly to length if a shorter run is needed. It is suitable for new construction, renovation, and HVAC replacement projects alike. Trade professionals working on residential air distribution systems will find this duct sleeve a reliable, code-friendly component for completing efficient duct layouts.

• R8 insulation rating meets energy code requirements for ducts in unconditioned spaces
• Polyester construction offers durability and ease of handling during installation
• 5 inch diameter by 5 foot length fits standard flexible duct system configurations

Product Highlights

The Hart Cooley 553276 F208 Series duct sleeve delivers R8 thermal performance in a 5 inch by 5 foot polyester format, giving HVAC installers a reliable, code-compliant solution for flexible duct transitions and extensions.

Product Information

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 553276

Technical Specifications

• Series: F208 Series
• R-Value: R8
• Material: Polyester
• Diameter: 5 inches
• Length: 5 feet