Flexmaster 1mr6.0-8 Acoustical Flex Duct R6 8in 25ft

Product Description

The FLEXMASTER 1mr6.0-8 is an R-6 insulated acoustical flexible duct designed for use in residential and light commercial HVAC air distribution systems. Measuring 8 inches in diameter and 25 feet in length, this flex duct connects supply air plenums and branch takeoffs to diffusers, registers, and grilles. The R-6 insulation value helps limit heat gain and heat loss across the duct run, and the acoustical construction reduces airborne noise transmission from the air handler or fan coil to the occupied space. HVAC technicians and sheet metal contractors are the primary installers of this product.

This flexible duct is suited for residential forced-air systems and light commercial applications where branch runs require noise attenuation and thermal performance. The 8-inch diameter accommodates moderate to high airflow branch runs commonly found in larger residential systems or small commercial VAV and constant-volume applications. The 25-foot length provides enough material for most single branch runs without splicing.

Key Features

• R-6 insulation value limits heat transfer along the duct run
• Acoustical construction attenuates airborne noise from the air-handling unit
• 8-inch diameter suits moderate to high-flow branch duct applications
• 25-foot length covers most single branch runs without a splice
• Flexible design allows routing around framing and obstructions in tight spaces

Compatibility

Designed as an OEM-style replacement and new-installation flexible duct for residential and light commercial forced-air HVAC distribution systems requiring R-6 insulated 8-inch diameter branch runs.

Installation Notes

Flexible duct installation is typically performed by licensed HVAC technicians or sheet metal contractors in accordance with SMACNA flexible duct installation standards and local mechanical codes. Power down and lock out the air-handling unit before connecting or disconnecting duct sections. Secure each end with an approved strap and mastic or foil tape rated for HVAC use to maintain the air seal. Avoid sharp bends, kinks, or compression, as these conditions reduce airflow and system efficiency.

Technical Specifications

• Diameter: 8 inches
• Length: 25 feet
• Insulation R-Value: R-6
• Product Family: 1MR6

Standard Information

• Brand: FLEXMASTER
• Manufacturer Part Number: 1mr6.0-8