Imperial Mfg Group Usa Inc GV0843 Round Top Collar 6 in

Product Description

The IMPERIAL MFG GROUP USA INC GV0843 is a 6-inch crimped round top collar fabricated from 30-gauge galvanized steel. Top collars are transition fittings installed at the top of a furnace, air handler, or plenum to connect the unit to round ductwork or a flue collar. The crimped end allows the collar to slip-fit into standard round duct sections without additional reducing fittings. The galvanized finish resists corrosion in both indoor and unconditioned space installations. HVAC installers and sheet metal contractors use this fitting during new construction and system retrofits where a clean, secure round duct connection is required at the equipment outlet.

This top collar is suited for residential and light commercial HVAC duct systems where a 6-inch round duct connection is required at the top of the air-handling equipment. The crimped end accommodates direct insertion into round duct sections or duct boots. It is commonly used on forced-air furnaces, packaged units, and air handlers during rough-in and equipment changeouts. Each package contains 12 collars, making it practical for multi-unit installations or stocking distributor shelves.

Key Features

• 6-inch diameter crimped end for slip-fit connection to standard round ductwork
• 30-gauge galvanized steel construction for corrosion resistance
• Crimped profile eliminates the need for separate reducing couplings at the duct connection
• Packaged in quantities of 12 for jobsite and inventory efficiency
• Suitable for residential and light commercial forced-air duct systems

Compatibility

Designed as an OEM-style replacement and new-installation fitting for residential and light commercial forced-air HVAC ductwork requiring a 6-inch round top collar connection.

Installation Notes

Installation is typically performed by licensed HVAC technicians or sheet metal contractors. Power down and lock out the air-handling equipment before making duct connections at the unit collar. Secure the collar to the duct section using sheet metal screws and seal all joints with listed duct sealant or UL 181-rated tape per applicable mechanical codes. Do not use this fitting on systems requiring a listed venting assembly without verifying the collar meets the applicable venting standard.