14" x 25' Silver Jacket Flex Duct, R8

The JP Lamborn MHP25R8B-14 flexible air duct is engineered for HVAC professionals requiring R8 thermal insulation and reliable airflow performance in residential and light commercial systems. Constructed with a reinforced aluminum/polyester laminate core, fiberglass insulation, and a silver vapor barrier jacket, this duct provides consistent mechanical strength, air sealing, and thermal efficiency. It is designed for use in supply and return air applications within rated system velocities and pressure limits.

Details

• Model: MHP25R8B-14
• Manufacturer: JP Lamborn
• Equivalent Product: Hart & Cooley Flexible Air Duct, Series: Residential
• Insulation Rating: R8
• Jacket Material: Silver vapor barrier, reinforced for puncture resistance and moisture protection
• Core Construction: Multi-layer aluminum/polyester laminate with corrosion-resistant steel wire helix
• Inside Diameter: 14 inches
• Length: 25 feet
• Maximum Air Velocity: 5000 FPM
• Temperature Range: -20°F to 140°F (-29°C to 60°C)
• Pressure Rating: Suitable for standard residential static pressure systems
• Application: Supply and return air distribution for residential and light commercial HVAC systems
• Standards/Compliance: UL 181 Class 1 Air Duct, NFPA 90A/90B, ASTM E84 Flame and Smoke
• Part Number: 2036776

Summary

The JP Lamborn MHP25R8B-14 R8 flexible insulated duct provides contractors with a high-performance, UL 181-compliant air distribution solution. Built with a durable core and silver vapor barrier jacket, it maintains airflow integrity, insulation efficiency, and compliance with mechanical code standards for residential and light commercial installations.