Value Collection 43105040 Galvanized Duct Tapered Reducer

Product Description

The VALUE COLLECTION 43105040 is a galvanized steel tapered duct reducer used to transition round ductwork from a 5-inch inside diameter down to a 4-inch inside diameter. The tapered, crimp-free end construction allows for smooth airflow transition without the stepped restriction of a crimped fitting. At 6.25 inches in overall height, this reducer fits standard sheet metal duct assemblies in residential and light commercial HVAC systems. It ships as a single unit and is installed by HVAC technicians during duct fabrication or repair work.

This reducer is suited for supply or return duct branches where a reduction in round duct diameter is required. The tapered profile reduces turbulence at the transition point compared to an abrupt stepped reducer. Galvanized construction resists corrosion in unconditioned spaces such as attics, crawlspaces, and mechanical rooms. It is appropriate for low-pressure duct systems in forced-air heating and cooling applications.

Key Features

• Transitions 5-inch ID round duct down to 4-inch ID without crimping the male end
• Tapered end construction promotes smoother airflow through the reduction
• Galvanized steel material provides corrosion resistance in unconditioned spaces
• 6.25-inch overall height fits standard duct runs with minimal clearance impact
• Single-piece construction with no moving parts or seals to fail

Compatibility

Designed as an OEM-style replacement or new-installation fitting for standard round galvanized duct systems with a 5-inch inlet and 4-inch outlet connection.

Installation Notes

This fitting is installed by licensed HVAC technicians as part of duct system fabrication or modification. Power down the air handling unit and close any isolation dampers before working in the duct system. Secure the reducer with sheet metal screws and seal all joints with UL 181-rated foil tape or mastic sealant per local mechanical codes. Do not use this fitting in high-pressure duct systems unless the system design specifies it as acceptable.