Imperial Mfg Group Usa Inc GV1416 Taper Reducer 5x4 in

Product Description

The IMPERIAL MFG GROUP USA INC GV1416 is a 24-gauge galvanized steel taper reducer designed to transition ductwork from a 5-inch diameter to a 4-inch diameter. The small end arrives pre-crimped for straightforward insertion into the next duct section or fitting. This fitting is a standard component in residential and light commercial forced-air HVAC duct systems. HVAC technicians and sheet metal installers use it wherever a concentric round-duct reduction is needed along a trunk or branch run.

This taper reducer fits into round galvanized duct assemblies requiring a 5-inch to 4-inch concentric transition. Typical applications include branch takeoffs, supply trunk reductions, and duct system balancing layouts in forced-air heating and cooling installations. The pre-crimped small end simplifies connections to standard 4-inch duct collars, fittings, and register boots. Sold in a package of 10 units, making it practical for contractors handling multiple duct runs on a single job.

Key Features

• 24-gauge galvanized steel construction for corrosion resistance in air distribution applications
• 5-inch inlet to 4-inch outlet concentric taper configuration
• Small end pre-crimped for direct insertion into downstream duct sections or fittings
• Package quantity of 10 units per order
• Lightweight at approximately 0.61 pounds per unit based on package weight

Compatibility

Designed as an OEM-style galvanized fitting for use in standard round galvanized duct systems requiring a 5-inch to 4-inch concentric taper reduction.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified sheet metal workers. Power down the air handling unit and close the system before modifying any duct section. Secure the fitting with sheet metal screws and seal all joints with UL 181-listed duct tape or mastic sealant per local mechanical code requirements. Do not force the crimped end into undersized collars, as deforming the gauge material can compromise the seal.