6" x 25' Silver Jacket Flex Duct, R6

Product Overview

The JP Lamborn MHP25R6B-06 Flexible Air Duct is an R-6 insulated air distribution component engineered for residential and light commercial HVAC systems. Constructed with a durable silver vapor-barrier jacket, fiberglass insulation, and a wire-reinforced inner core, this duct provides efficient airflow and superior thermal performance. It is designed for use in both supply and return air applications and complies with UL and NFPA standards for flexible duct systems.

Technical Specifications

• Model: MHP25R6B-06
• Manufacturer: JP Lamborn (Hart & Cooley)
• Series: Residential
• Product Type: Insulated Flexible Air Duct
• Inside Diameter: 6 inches
• Length: 25 feet
• Insulation Value: R-6
• Outer Jacket: Silver vapor-barrier jacket for moisture and tear resistance
• Air Velocity Rating: 5000 fpm (maximum)
• Temperature Range: -20°F to 140°F (-29°C to 60°C)
• Core Construction: Helically wound, wire-reinforced inner core
• Insulation Type: Thermal fiberglass blanket with polyethylene vapor barrier
• Application: Supply and return air distribution in HVAC systems for residential and light commercial use
• Compliance: UL 181 Class 1 Air Duct; conforms to NFPA 90A and 90B standards
• Installation: Approved for use in both conditioned and unconditioned spaces per mechanical code requirements

Professional Notes

Install according to JP Lamborn and SMACNA standards for flexible duct systems. Fully extend duct lengths during installation to minimize static pressure losses and preserve rated airflow. Provide proper support at recommended intervals to prevent sagging and maintain insulation thickness. All joints and terminations must be sealed using UL 181-approved tapes or mastics to ensure system integrity and efficiency. Avoid kinking or excessive bending to maintain consistent air delivery and prevent insulation damage.

Summary

The JP Lamborn MHP25R6B-06 Flexible Air Duct is a 6-inch diameter, 25-foot R-6 insulated duct with a silver vapor-barrier jacket. Rated for 5000 fpm and -20°F to 140°F operation, it provides durable, thermally efficient, and code-compliant air distribution performance for professional residential and light commercial HVAC installations.