Mulberry Conduit Knockout Reducing Washer Fitting

Mulberry Conduit Knockout Reducing Washer

The Mulberry Conduit Knockout Reducing Washer gives electricians a fast, secure way to adapt an existing conduit knockout down to a smaller trade size on panelboards, enclosures, meter sockets, and junction boxes. Rather than redrilling, reaming, or oversizing an existing opening, installers can drop the correctly sized Mulberry reducing washer into place to close the size gap and maintain a clean, properly seated transition between mismatched trade sizes. This family covers ten common knockout-to-conduit reductions, including 1" to 1/2", 1" to 3/4", 1-1/4" to 1/2", 1-1/4" to 3/4", 1-1/2" to 1/2", 1-1/2" to 3/4", 1-1/2" to 1", 2" to 1", 2" to 1-1/4", and 3" to 2-1/2", so electricians can standardize on a single supplier for nearly every panel and enclosure sizing mismatch encountered in rough-in and service upgrade work. As part of Mulberry's broader line of conduit fittings and electrical hardware, these reducing washers are built for straightforward field use on commercial, industrial, and residential projects wherever a larger pre-punched knockout must accept a smaller conduit run without modifying or replacing the enclosure itself.

Key Features

• Trade Size Reduction Range: Available in reductions from 1" to 1/2" up through 3" to 2-1/2", covering ten of the most common knockout-to-conduit size combinations.
• Reducing Washer Design: Eliminates the need to redrill, ream, or oversize a knockout when a smaller conduit size is being landed in a larger opening.
• Mulberry Manufactured: Sourced from Mulberry's line of conduit fittings and accessories used across a wide range of electrical distribution equipment.
• Field-Ready Fit: A simple, one-piece washer that seats into the larger knockout to accept the smaller conduit or fitting without special tools, speeding up rough-in and service work.
• Accurate Reordering: Each size in the family is identified by its own Mulberry model number for accurate specification, cross-reference, and reordering.

Technical Specifications

• Trade Size Reductions Offered: 1" to 1/2", 1" to 3/4", 1-1/4" to 1/2", 1-1/4" to 3/4", 1-1/2" to 1/2", 1-1/2" to 3/4", 1-1/2" to 1", 2" to 1", 2" to 1-1/4", 3" to 2-1/2".
• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Panelboard and Load Center Knockout Adaptation
• Electrical Enclosure and Junction Box Installations
• Conduit Size Transitions in Commercial and Industrial Wiring
• Service Entrance and Distribution Equipment Assembly
• Renovation, Retrofit, and New Construction Electrical Work

Why Mulberry?

Mulberry produces a broad catalog of conduit fittings, washers, and electrical hardware relied on by professional electricians for dependable, application-specific connections in panelboards, enclosures, and raceway systems. This reducing washer family reflects that same practical, job-ready approach—simple components designed to solve common sizing mismatches in the field without improvisation or extra fabrication. For electricians standardizing on a single supplier for conduit fittings and hardware, Mulberry reducing washers offer a straightforward way to keep panel and enclosure knockouts properly matched to the conduit being installed, whatever the size combination. Choose Mulberry conduit fittings from ZenSupply for accurate, ready-to-install electrical hardware on your next project.