12" x 25' Silver Jacket Flex Duct, R8

The JP Lamborn MHP25R8B-12 flexible air duct is designed for HVAC professionals requiring R8 thermal insulation and dependable airflow performance. Engineered for use in supply and return air systems, this duct integrates a reinforced aluminum/polyester core, fiberglass insulation, and a silver vapor barrier jacket to maintain mechanical durability, thermal efficiency, and compliance with applicable standards. Suitable for residential and light commercial systems operating within standard velocity and pressure limits.

Details

• Model: MHP25R8B-12
• Manufacturer: JP Lamborn
• Equivalent Product: Hart & Cooley Flexible Air Duct, Series: Residential
• Insulation Rating: R8
• Jacket Material: Silver vapor barrier, reinforced for moisture control and tensile strength
• Core Construction: Multi-layer aluminum/polyester laminate with corrosion-resistant steel wire helix
• Inside Diameter: 12 inches
• Length: 25 feet
• Maximum Air Velocity: 5000 FPM
• Temperature Range: -20°F to 140°F (-29°C to 60°C)
• Pressure Rating: Designed for standard residential static pressure systems
• Application: Supply and return air distribution for residential and light commercial HVAC installations
• Standards/Compliance: UL 181 Class 1 Air Duct, NFPA 90A/90B, ASTM E84 Flame and Smoke
• Part Number: 2036775

Summary

The JP Lamborn MHP25R8B-12 R8 flexible insulated duct provides HVAC contractors with a durable, UL 181-compliant component designed for efficient air handling and insulation performance. Featuring a reinforced core and silver vapor barrier jacket, this duct ensures reliable thermal protection and mechanical integrity in residential and light commercial air distribution systems.