Hart Cooley 51038 F214 Metalized Flexible Air Duct 7 Inches X 25 Feet R-4.2 Insulated

Product Description

The Hart Cooley 51038 is a metalized flexible air duct designed for use in residential and light commercial HVAC systems. This duct ships as a 7-inch diameter by 25-foot length and carries an R-4.2 insulation rating, making it well suited for installations where both flexibility and thermal efficiency are required. HVAC technicians and mechanical contractors rely on flexible insulated duct to connect supply air outlets from plenums or trunk lines to diffusers, registers, and grilles throughout a building. The metalized outer jacket provides durability and reflects radiant heat, while the inner liner maintains smooth airflow to reduce static pressure drop across the run. The polyester insulation blanket between the inner core and outer jacket delivers the R-4.2 thermal resistance value, helping to prevent heat gain or heat loss as conditioned air travels from the air handler to the living space. This product is commonly used in attic installations, crawl spaces, and above-ceiling plenum spaces where duct runs need to bend around structural framing or mechanical obstacles. The 7-inch diameter is a common size used in residential forced-air systems for branch duct runs serving larger rooms or zones with higher airflow demands. A 25-foot length gives installers enough material to complete most standard branch runs without splicing. Hart Cooley is a well-established manufacturer of HVAC air distribution products, and the F214 series is a trusted line of insulated flexible duct used across the trade. This duct is compatible with standard 7-inch duct fittings, collars, and takeoffs. It meets requirements for flexible duct installations in typical forced-air heating and cooling applications.

• 7-inch diameter by 25-foot length for branch duct runs in residential and light commercial HVAC systems
• R-4.2 polyester insulation blanket reduces heat gain and heat loss in attic, crawl space, and plenum installations
• Metalized outer jacket provides durability, radiant heat reflection, and resistance to puncture during installation

Product Highlights

The Hart Cooley 51038 F214 metalized flexible air duct delivers reliable R-4.2 insulated performance in a 7-inch by 25-foot format, giving HVAC professionals a dependable solution for insulated branch duct runs in forced-air systems.

Product Information

Standard Information

• Brand: HART COOLEY
• Manufacturer Part Number: 51038

Technical Specifications

• Series: F214
• Diameter: 7 inches
• Length: 25 feet
• Insulation R-Value: R-4.2
• Jacket Type: Metalized Polyester
• Duct Type: Flexible Insulated Air Duct