Imperial Mfg Group Usa Inc GV0787 Reducer Increaser 7x6 in

Product Description

The IMPERIAL MFG GROUP USA INC GV0787 is a 28-gauge galvanized steel taper reducer/increaser designed for round duct transitions in residential and light commercial HVAC systems. It connects a 7-inch duct to a 6-inch duct without a crimped end, allowing airflow to transition smoothly between different duct diameters. The no-crimp design accommodates either a reducing or increasing application depending on installation orientation. At 6.85 pounds per unit, it is a solid, corrosion-resistant fitting suited for supply or return air trunk-to-branch transitions. HVAC installers and sheet metal mechanics use this fitting when resizing round ductwork runs.

This fitting is used in forced-air heating and cooling systems where round duct diameters must step down or step up between sections. Typical applications include trunk-to-branch transitions, air handler connections, and inline duct resizing on residential or light commercial systems. The galvanized steel construction makes it appropriate for both conditioned-space and unconditioned-space duct runs such as attics, crawlspaces, and mechanical rooms. It is sold in packages of 12 units, making it practical for contractors stocking fittings for multiple jobs.

Key Features

• 28-gauge galvanized steel construction for corrosion resistance and structural rigidity
• No-crimp end design allows use as either a reducer or increaser depending on orientation
• Tapered profile promotes smooth airflow transition between duct sizes
• 7-inch to 6-inch diameter transition fits common residential round duct sizing
• Sold in a 12-unit package for contractor convenience

Compatibility

Designed as an OEM-style replacement and new-installation fitting for standard round galvanized ductwork systems using 7-inch and 6-inch diameter duct connections.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal mechanic. Shut down the air handling system and de-energize the unit before cutting into or modifying any duct section. Secure the fitting with sheet metal screws and seal all joints with UL 181-rated duct mastic or foil tape per applicable mechanical codes. Do not use standard cloth duct tape as a permanent sealant.