Air Flow Products RE086 Reducer Increaser 8 to 6 Inch

Product Description

The AIR FLOW PRODUCTS RE086 is a duct reducer-increaser fitting designed to transition between 8-inch and 6-inch round duct sections in forced-air HVAC systems. This type of fitting is used to step down airflow from a larger trunk or branch to a smaller downstream duct run, or to step up from a smaller supply to a larger duct section. It is installed by HVAC technicians during new construction, system modification, or duct repair work. The RE086 provides a direct, low-turbulence transition that helps maintain system airflow balance across differing duct diameters.

The RE086 is suited for residential and light commercial forced-air applications where duct diameter changes are required between main trunk lines and branch runs. Common install scenarios include air handler supply plenums, inline duct transitions, and equipment connections where the upstream and downstream duct sizes differ. This fitting is appropriate for supply and return duct systems operating at standard residential static pressures.

Key Features

• Transitions between 8-inch and 6-inch round duct diameters
• Suitable for both supply and return duct applications
• Designed for standard residential and light commercial forced-air systems
• Compact reducer-increaser profile minimizes pressure drop at the transition

Compatibility

Designed as an OEM-style duct fitting for use with standard 8-inch and 6-inch round duct systems in residential and light commercial forced-air HVAC installations.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified duct installers. Power down the air handling unit at the disconnect before beginning any duct modification. Secure the fitting to adjoining duct sections using sheet metal screws and seal all joints with UL 181-rated foil tape or mastic sealant to prevent air leakage. Verify that the transition direction matches system airflow before finalizing connections.

Technical Specifications

• Large End Diameter: 8 inches
• Small End Diameter: 6 inches
• Fitting Type: Reducer-Increaser

Standard Information

• Brand: AIR FLOW PRODUCTS
• Manufacturer Part Number: RE086