Arlington Industries Plated St...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$63.08
$12.04

Arlington Industries Plated Steel Reducing Washer - 4" to 3-1/2" Knockout Reducer

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Model: RW45
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$63.08
$12.04
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Arlington Industries Plated Steel Reducing Washer - 4" to 3-1/2" Knockout Reducer

Professional Knockout Size Conversion Made Simple

The Arlington Industries Plated Steel Reducing Washer is an innovative knockout adapter designed to solve electrical box compatibility challenges. This plated steel reducing washer features precision-engineered dimensions for seamless 4" to 3-1/2" knockout conversion, delivering the reliable performance and professional finish that electrical contractors demand.

Innovative Features & Benefits

Precision Engineering

  • Exact Size Conversion - Reduces 4" knockout to precise 3-1/2" opening, eliminating guesswork and ensuring perfect fit
  • Plated Steel Construction - Superior corrosion resistance and durability for long-lasting performance in demanding environments
  • Professional Grade Finish - Clean, uniform appearance that maintains installation aesthetics
  • UL and CSA Listed - Meets rigorous safety standards for commercial and residential applications

Installation Efficiency

  • Drop-In Design - Simple installation saves valuable job site time
  • Secure Fit - Engineered tolerances ensure stable, vibration-resistant connection
  • No Special Tools Required - Standard installation process with existing equipment

Technical Specifications

Material: Plated Steel | Reduces: 4" knockout to 3-1/2" knockout | Height: 5.500" | Finish: Silver plated | Listings: UL, CSA | Standard Packaging: 10 pieces | Corrosion-resistant plating for indoor and outdoor applications

Quick Installation Process

  1. Verify 4" knockout opening is clean and free of burrs
  2. Position reducing washer over knockout opening
  3. Ensure washer sits flush against surface
  4. Install 3-1/2" component through reduced opening
  5. Secure connection according to component specifications
  6. Verify tight, stable fit with no movement

Perfect Applications

Ideal for:

  • Electrical Panel Modifications - Retrofit installations requiring different knockout sizes
  • Commercial Buildings - Office complexes, retail spaces, and industrial facilities
  • Residential Projects - Home electrical upgrades and new construction
  • Industrial Applications - Manufacturing facilities and warehouse electrical systems
  • Retrofit Projects - Upgrading existing electrical systems with new components
  • Maintenance Operations - Repair and replacement work requiring size adaptation
  • Custom Installations - Specialized electrical configurations requiring precise fit
  • Code Compliance Projects - Meeting specific electrical code requirements

Knockout Reduction Advantage

Arlington's reducing washer eliminates the need for expensive panel replacements or custom fabrication when knockout sizes don't match component requirements, providing a cost-effective solution that maintains professional installation standards.

Why Choose Arlington Innovation?

Since 1949, Arlington Industries has been the trusted name for innovative electrical solutions that solve real-world installation challenges. Our reducing washers deliver the precision engineering and reliable performance that electrical professionals depend on for efficient, code-compliant installations.

Manufacturer Resources

Product Specs

Listing:
UL, CSA
Material S :
Steel
Standard Packaging:
10pcs
Trade Size:
4" x 3-1/2"
Product Type:
Reducing Washers
Product Group:
Conduit and Cable Fittings
Department:
Electrical
Product Subgroup:
Locknuts and Washers
Product Color:
Silver
Product Height:
5.500"
Product Weight:
0.188 lbs/each
Product Width:
5.500"

Arlington Industries RW45 – Frequently Asked Questions

How fast can I get the Arlington Industries RW45 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 RW45 come with a warranty?
Absolutely. The Arlington Industries RW45 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 RW45?
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 RW45 from ZenSupply?
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