Hart Cooley 553277 F208 Series Fiberglass Duct Sleeve R-8.0 6 Inches Dia 5 Ft

Product Description

The Hart Cooley 553277 is an F208 Series fiberglass duct sleeve designed for use in residential and light commercial HVAC systems. This duct sleeve provides a flexible, insulated solution for connecting air distribution equipment to ductwork runs. It is 6 inches in diameter and 5 feet in length, making it a practical choice for standard trunk-to-register connections, air handler connections, and branch duct runs. The sleeve features R-8.0 insulation, which meets or exceeds energy code requirements in most jurisdictions. HVAC technicians and installers rely on high R-value flexible duct sleeves to reduce heat gain and heat loss as conditioned air travels through unconditioned spaces such as attics, crawl spaces, and mechanical rooms. The outer jacket on this duct sleeve is constructed from metalized polyester, which reflects radiant heat and provides a durable barrier against moisture and physical damage during installation. The F208 Series insulation is formaldehyde free, making it a safer choice for installers who work in enclosed or poorly ventilated spaces. This product is UL Classified, confirming it meets recognized safety and performance standards for HVAC duct applications. The coreless design allows the sleeve to be shaped and fitted around existing connections without a rigid inner liner getting in the way. The polyethylene material used in the construction adds flexibility and resistance to tearing. The sleeve ships in a boxed package for easy handling and storage on job sites. Designed for venting and air distribution applications, the Hart Cooley 553277 is a straightforward, code-compliant choice for HVAC professionals completing new installations or replacing damaged flexible duct sections.

• R-8.0 formaldehyde free F208 Series insulation meets current energy code requirements for HVAC duct systems
• Metalized polyester outer jacket provides radiant heat reflection, moisture resistance, and durability during installation
• UL Classified product in a coreless design, 6 inches in diameter and 5 feet in length, suited for standard branch duct connections

Product Highlights

The Hart Cooley 553277 F208 Series duct sleeve delivers R-8.0 insulation performance in a flexible, coreless format with a metalized polyester jacket, making it a reliable option for HVAC duct installations in residential and light commercial settings.

Product Information

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 553277

Technical Specifications

• Series: F208
• Diameter: 6 inches
• Length: 5 feet
• Insulation R-Value: R-8.0
• Jacket Material: Metalized Polyester
• Core Type: No Core
• Material: Polyethylene
• Application: HVAC
• Type: Venting
• Listing: UL Classified
• Package: Boxed