16" x 25' Silver Jacket Flex Duct, R8

Product Overview

The JP Lamborn MHP25R8B-16 Flexible Air Duct is an R-8 insulated air distribution component engineered for residential and light commercial HVAC systems. Designed for high-efficiency air delivery, it features a wire-reinforced inner core, fiberglass insulation, and a silver vapor-barrier jacket that provides moisture resistance and mechanical protection. This duct is intended for both supply and return applications and is manufactured to meet UL and NFPA standards for flexible duct construction and installation.

Technical Specifications

• Model: MHP25R8B-16
• Manufacturer: JP Lamborn (Hart & Cooley)
• Series: Residential
• Product Type: Insulated Flexible Air Duct
• Inside Diameter: 16 inches
• Length: 25 feet
• Insulation Value: R-8
• Outer Jacket: Silver vapor-barrier jacket for moisture and puncture 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: Fiberglass blanket insulation with polyethylene vapor barrier
• Application: Supply and return air distribution for residential and light commercial HVAC systems
• Compliance: UL 181 Class 1 Air Duct; conforms to NFPA 90A and NFPA 90B standards
• Installation: Approved for use in both conditioned and unconditioned spaces in accordance with mechanical code requirements

Professional Notes

Install in accordance with JP Lamborn and SMACNA flexible duct standards. Fully extend all duct lengths to maintain design airflow capacity and reduce static pressure loss. Support ducts at recommended intervals to prevent sagging or insulation compression. Seal all joints and connections using UL 181-approved tape or mastic to ensure airtight system performance. Avoid sharp bends, compression, or deformation that could affect airflow efficiency and insulation integrity.

Summary

The JP Lamborn MHP25R8B-16 Flexible Air Duct is a 16-inch diameter, 25-foot R-8 insulated duct with a silver vapor-barrier jacket. Rated for 5000 fpm airflow and -20°F to 140°F operation, it delivers durable, thermally efficient, and code-compliant performance for professional residential and light commercial HVAC air distribution systems.