Arlington Industries Plated Steel Reducing Washer - 3" to 2-1/2" Knockout Reducer

Arlington Industries Plated Steel Reducing Washer - 3" to 2-1/2" Knockout Reducer

Professional Knockout Size Conversion Made Simple

The Arlington Industries Plated Steel Reducing Washer is an innovative knockout adapter designed to solve oversized knockout problems. This plated steel reducing washer features precision-engineered dimensions for seamless conversion from 3" knockouts to 2-1/2" knockouts, delivering the reliable fit and professional finish that electrical contractors demand.

Innovative Features & Benefits

Precision Engineering

• Exact Size Conversion - Reduces 3" knockout to perfect 2-1/2" opening, eliminating guesswork and ensuring proper connector fit
• Plated Steel Construction - Superior corrosion resistance and durability compared to unfinished steel alternatives
• Professional Grade Thickness - Engineered thickness provides secure mounting without flexing or distortion
• Smooth Edges - Precision-formed edges protect cables and provide clean, professional appearance

Installation Efficiency

• Drop-In Design - Simple installation saves time on every job
• Universal Compatibility - Works with standard electrical enclosures and junction boxes
• No Special Tools Required - Standard installation using common electrical tools

Technical Specifications

Reduces 3" knockout to 2-1/2" knockout opening, plated steel construction, 4.490" height dimension, UL and CSA listed for safety compliance, standard packaging of 25 pieces for contractor convenience.

Quick Installation Process

1. Verify 3" knockout opening is clean and free of burrs
2. Insert reducing washer into knockout from inside of enclosure
3. Ensure washer sits flush against enclosure wall
4. Install 2-1/2" connector or fitting through reduced opening
5. Tighten connector locknut to secure assembly
6. Verify proper seal and connection integrity

Perfect Applications

Ideal for:

• Panel Modifications - Electrical panels requiring different connector sizes than original knockouts
• Equipment Upgrades - Retrofitting existing enclosures with new conduit or cable connections
• Commercial Installations - Office buildings, retail spaces, and industrial facilities
• Residential Projects - Service panels, sub-panels, and junction boxes
• Industrial Applications - Manufacturing facilities and process control installations
• Maintenance Work - Repair and modification of existing electrical systems
• Custom Enclosures - Specialty applications requiring precise knockout sizing
• Code Compliance Projects - Ensuring proper connector fit for inspection approval

Reducing Washer Advantage

Arlington's precision-engineered reducing washers eliminate the need for oversized holes, welding modifications, or custom fabrication, providing a clean, code-compliant solution that maintains enclosure integrity while achieving perfect connector fit.

Why Choose Arlington Innovation?

Since 1949, Arlington Industries has solved electrical installation challenges with innovative products that save time and ensure professional results. Our reducing washers represent decades of engineering expertise, delivering the precision fit and reliable performance that electrical professionals trust for critical applications.