Value Collection 43104030 Galvanized Duct Tapered Reducer

Product Description

The VALUE COLLECTION 43104030 is a galvanized steel tapered duct reducer used to transition airflow from a 4-inch inside diameter duct down to a 3-inch inside diameter duct. It features a tapered, crimp-free end construction that allows it to slip directly into adjoining duct sections without the need for a crimped male end. At 5.75 inches in overall height and weighing 0.35 pounds, this reducer is a lightweight, single-piece fitting suited for residential and light commercial sheet metal duct systems. HVAC technicians and sheet metal mechanics install this fitting during new construction duct fabrication or as a replacement in existing forced-air distribution systems.

This reducer is appropriate for round galvanized duct branch runs and trunk-to-branch transitions in forced-air heating and cooling systems. The tapered body seats snugly inside the larger duct collar, making it compatible with standard spiral and snap-lock round duct of the corresponding diameters. Without a crimped end, the fitting allows either end to act as the receiving socket depending on airflow direction and installation preference, offering flexibility in tight or restricted plenum spaces.

Key Features

• Transitions from 4-inch ID to 3-inch reduced ID for round galvanized duct systems
• Tapered end construction with no crimp allows flexible insertion into adjoining duct
• Galvanized steel construction resists corrosion in conditioned air environments
• 5.75-inch overall height provides gradual taper to minimize airflow restriction
• Lightweight at 0.35 pounds for easy single-handed installation in confined spaces

Compatibility

Designed as an OEM-style replacement or new-installation fitting for standard 4-inch to 3-inch round galvanized duct systems in residential and light commercial forced-air applications.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified sheet metal mechanics. Shut down and lock out the air handling unit before cutting into or modifying any duct section. Secure the fitting with sheet metal screws and seal all joints with UL 181-rated foil tape or mastic sealant per local mechanical code requirements. Do not rely on duct tape alone to seal connections in conditioned air systems.