Seal-tite 233-0504 Short Reducer 5 to 4 Inch No Crimp

Product Description

The SEAL-TITE 233-0504 is a short reducer fitting designed to transition ductwork or conduit from a 5-inch diameter down to a 4-inch diameter without the need for crimping. This no-crimp design simplifies connections by eliminating the manual crimping step typically required when joining dissimilar duct sizes. It is suited for use in HVAC duct systems where a compact, reliable size transition is needed. HVAC installers and sheet metal contractors install this fitting during new construction and retrofit projects where space is limited and a clean, secure connection between adjacent duct sections is required.

This short reducer is used in residential and light commercial HVAC duct installations where a 5-inch to 4-inch transition is needed in supply or return air runs. Its short profile makes it well suited for tight plenum spaces or areas with limited straight duct runs. The no-crimp design allows for straightforward slip-fit assembly, reducing installation time and the need for additional crimping tools on the job.

Key Features

• Transitions duct diameter from 5 inches down to 4 inches
• Short profile accommodates confined installation spaces
• No-crimp design eliminates manual crimping step for faster assembly
• Slip-fit connection compatible with standard round duct sections
• Compact reducer suitable for supply and return air duct runs

Compatibility

Designed as an OEM-style replacement or new-installation fitting for standard 5-inch to 4-inch round duct systems in residential and light commercial HVAC applications.

Installation Notes

This fitting is typically installed by licensed HVAC technicians or sheet metal contractors following local mechanical codes. Shut down the air handling system and ensure airflow is stopped before fitting installation. Secure the reducer to adjacent duct sections with sheet metal screws and seal all joints with approved duct tape or mastic sealant in accordance with applicable mechanical codes.

Technical Specifications

• Inlet Diameter: 5 inches
• Outlet Diameter: 4 inches
• Style: Short Reducer
• Connection Type: No Crimp

Standard Information

• Brand: SEAL-TITE
• Manufacturer Part Number: 233-0504