L H Dottie Co R374 Reducing Bushing 4x2.5 Inch

Product Description

The L H Dottie Co R374 is a reducing bushing designed to connect conduit or pipe of different diameters within electrical and mechanical installations. It transitions a 4-inch opening down to a 2.5-inch fitting, allowing trade professionals to adapt between mismatched knockouts, junction boxes, or conduit runs without replacing existing hardware. Licensed electricians and plumbers rely on reducing bushings like the R374 to maintain clean, code-compliant transitions in panel enclosures, junction boxes, and conduit systems where knockout sizes do not match the entering conduit or pipe size.

The R374 is suited for use in residential and light commercial electrical or plumbing installations. It is commonly installed at panel knockouts, enclosure entries, and conduit body connections where a 4-inch opening must be reduced to accept 2.5-inch conduit or pipe fittings. It is sold as a single unit and is a standard hardware accessory used during rough-in and fit-out stages of construction and service work.

Key Features

• Reduces a 4-inch opening to a 2.5-inch fitting in a single piece
• Sold individually for precise quantity ordering on service calls
• Standard hardware accessory compatible with common conduit and box applications
• Compact design installs without specialty tools in most enclosure knockout applications

Compatibility

Designed as an OEM-style replacement and standard-fit reducing bushing for 4-inch to 2.5-inch knockout or conduit transitions in residential and commercial electrical enclosures and conduit systems.

Installation Notes

Installation is typically performed by a licensed electrician or journeyman plumber depending on application. De-energize all circuits and verify the panel or enclosure is locked out before working at any knockout or entry point. Ensure the bushing seats flush and is fully threaded or pressed into place before securing conduit. Follow applicable NEC requirements for conduit fill, fitting ratings, and enclosure protection when selecting and installing reducing bushings.