Mulberry 40031 3 x 2 Reducer W...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2.30
Image coming soon

Mulberry 40031 3 x 2 Reducer Washer

(No reviews yet) Write a Review

Model: 40031

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

$2.30
Adding to cart… The item has been added
Free Shipping on orders over $199
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
You may also like

Mulberry 40031 3 x 2 Reducer Washer

The Mulberry 40031 is a 3 x 2 Reducer Washer built to adapt a larger conduit or enclosure knockout down to a smaller trade size opening. Reducer washers like the 40031 give electricians and contractors a simple way to install smaller conduit fittings, connectors, locknuts, or cable assemblies into an oversized knockout without swapping out the box, cabinet, or panel. This model steps a 3 trade size knockout down to 2, correcting mismatched conduit and knockout sizes commonly encountered on commercial, industrial, and residential job sites. Marked with Mulberry model number 40031 for accurate identification, this reducer washer supports straightforward reordering and consistent fit across standard electrical trade sizes.

Key Features

  • Trade Size Reduction: Steps a 3 trade size knockout down to 2, allowing smaller conduit, connectors, or fittings to seat securely in a larger opening.
  • Reducer Washer Design: Purpose-built washer profile intended specifically for trade size adaptation between mismatched knockouts and conduit or fitting sizes, distinct from a standard locknut or bushing.
  • Field-Ready Solution: Resolves conduit-to-knockout size mismatches on site without requiring a full box, cabinet, or panel replacement, saving material and labor time.
  • Model Identification: Marked as Mulberry 40031 for easy identification, reordering, and stocking by electrical contractors, panel shops, and distributors.
  • Compact Hardware Component: A small, low-profile washer that fits within existing knockout openings without adding significant bulk to the enclosure.
  • Consistent Trade Size Match: Designed to standard 3 and 2 trade size dimensions so it interfaces predictably with common conduit, connectors, and knockouts used in the field.

Technical Specifications

  • Refer to manufacturer documentation for complete specifications.

Typical Applications

  • Panelboard and Enclosure Knockout Adaptation
  • Conduit Size Transitions in Commercial and Industrial Wiring
  • Electrical Box and Cabinet Installations
  • Renovation and Retrofit Projects with Oversized Existing Knockouts
  • Distributor and Contractor Stock for Standard Trade Size Adapters
  • Maintenance and Service Work on Existing Electrical Systems

Why Mulberry?

Mulberry manufactures electrical hardware components, including reducer washers like the 40031, to help electricians and contractors resolve everyday conduit and knockout size mismatches on the job site. Specifying the exact Mulberry model number when ordering helps ensure the correct trade size fit and dependable performance in standard electrical installations, whether for new construction or maintenance work. Mulberry's reducer washers are stocked and specified as small-format hardware that keeps standard electrical installations correctly sized and easy to complete.

Manufacturer Resources

Product Specs

Product Type:
Reducer Washer
Department:
Electrical
Product Subgroup:
Shop by Brand
list_batch:
MUL-20260919
Product Size:
3 x 2

Mulberry 40031 – Frequently Asked Questions

1) I have a 4 inch knockout and 2 inch conduit, is the 40031 the right part?
No. The 40031 covers 3 inch down to 2 inch only. For a 4 inch knockout taking 2 inch conduit, order the Mulberry 40046, which is the 4 in. to 2 in. reduction in the same reducer washer line.
2) Can I use a reducer washer instead of replacing a panel with oversized knockouts?
That is the point of it. On a retrofit or service call where the existing knockout is larger than the conduit you are running, the Mulberry 40031 adapts a 3 inch opening down to 2 inch so the smaller connector seats correctly. No need to swap the box, cabinet, or panelboard, which is where the labor and material cost would go.
3) Is a reducer washer the same thing as a reducing bushing or a locknut?
No. A reducer washer such as the Mulberry 40031 is a flat washer-style plate that closes down an oversized knockout to a smaller trade size. A locknut secures the fitting to the enclosure and a bushing protects the conductors at the conduit end. The washer handles the size mismatch; you still use the appropriate connector and locknut for the 2 inch fitting itself.
4) What trade size reductions do Mulberry reducer washers come in?
Two reductions are offered: 3 in. to 2 in. as model 40031, and 4 in. to 2 in. as model 40046. Both land a 2 inch fitting, so the choice comes down to the size of the existing knockout in your panel or enclosure.
5) Will a Mulberry reducer washer add bulk inside my enclosure?
It is a low-profile washer that sits within the existing knockout opening, so it does not take up meaningful room inside the cabinet or crowd the gutter space around conductors.
6) What part number should I stock for 3 inch to 2 inch knockout reductions?
Mulberry 40031. The part is marked with that model number, which is what distributors and panel shops use to reorder and keep the right trade size on the shelf. The companion number for 4 inch to 2 inch work is 40046.
How fast can I get the Mulberry 40031 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 Mulberry 40031 come with a warranty?
Absolutely. The Mulberry 40031 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 Mulberry 40031?
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 Mulberry 40031 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.
!