Arlington Industries Plated St...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$51.34
$1.34

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

(No reviews yet) Write a Review

Model: RW21
Selected Model is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$51.34
$1.34
Adding to cart… The item has been added
Free Shipping on orders over $99
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks

Arlington Industries Plated Steel Reducing Washer

Professional Knockout Size Reduction Solution

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 engineering for reducing 2-1/2" knockouts to 2" knockouts, delivering the exact fit and professional finish that electrical professionals demand.

Innovative Features & Benefits

Precision Engineering

  • Exact Size Reduction - Reduces 2-1/2" knockout to perfect 2" opening in seconds
  • Plated Steel Construction - Superior corrosion resistance and long-lasting durability
  • Precision Fit Design - Eliminates gaps and ensures professional appearance
  • Universal Compatibility - Works with standard electrical boxes and enclosures

Installation Advantages

  • No Special Tools Required - Simple installation saves time and labor costs
  • Secure Mounting - Stays firmly in place once installed
  • Professional Finish - Clean, finished appearance meets code requirements

Technical Specifications

Reduces 2-1/2" knockout to 2" knockout opening, plated steel construction with silver finish, 3.265" height, UL and CSA listed for safety compliance, packaged 50 pieces per standard package for contractor convenience.

Quick Installation Process

  1. Verify 2-1/2" knockout opening size and clean edges
  2. Insert reducing washer into knockout from inside of enclosure
  3. Press firmly until washer seats flush against enclosure wall
  4. Verify 2" opening is properly sized for intended connector
  5. Install 2" connector or fitting as required
  6. Complete installation with proper torque specifications

Perfect Applications

Ideal for:

  • Electrical Panel Modifications - Retrofit panels when smaller conduit connections needed
  • Junction Box Adaptations - Convert oversized knockouts for proper connector fit
  • Industrial Enclosures - Modify control panels and motor control centers
  • Commercial Installations - Office buildings, retail spaces, and institutional facilities
  • Residential Upgrades - Service panel modifications and electrical updates
  • Maintenance Projects - Repair work where original knockout size doesn't match requirements
  • New Construction - Standardize connections across different enclosure types
  • Retrofit Applications - Upgrade existing installations with modern components

Knockout Reduction Advantage

Arlington's reducing washer eliminates the need for oversized connectors or custom fabrication, providing a cost-effective solution that maintains professional appearance and code compliance while saving installation time.

Why Choose Arlington Innovation?

Since 1949, Arlington Industries has solved electrical installation challenges with innovative products that save time and ensure professional results. This reducing washer represents decades of experience in creating practical solutions for real-world electrical problems.

Manufacturer Resources

Product Specs

Listing:
UL, CSA
Material S :
Steel
Standard Packaging:
50pcs
Trade Size:
2-1/2" x 2"
Product Type:
Reducing Washers
Product Group:
Conduit and Cable Fittings
Department:
Electrical
Product Subgroup:
Locknuts and Washers
Product Color:
Silver
Product Height:
3.265"
Product Weight:
0.030 lbs/each
Product Width:
3.265"

Arlington Industries RW21 – Frequently Asked Questions

How fast can I get the Arlington Industries RW21 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Arlington Industries RW21 come with a warranty?
Absolutely. The Arlington Industries RW21 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Arlington Industries RW21?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Arlington Industries RW21 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.