We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

L.H. DOTTIE

L.H. DOTTIE RW92 Conduit Reducing Washer 3-1/2 in x 3/4 in Steel PVC

SKU CH-21YD-6JSRM

Reduces conduit openings from 3-1/2 in to 3/4 in using steel and PVC construction

  • Reduces conduit size from 3-1/2 in to 3/4 in for flexible installations
  • Steel construction with PVC coating resists corrosion in damp environments
  • Model RW92 ensures correct fit for DOTTIE conduit systems
  • New condition guarantees full structural integrity out of the box
  • Combines metal strength with non-conductive PVC for safer electrical runs

Conduit Reducing Washer 3-1/2 in x 3/4 in

The L.H. DOTTIE RW92 is a steel and PVC conduit fitting designed to reduce a 3-1/2 inch opening to accept a 3/4 inch connection. It provides a secure transition between different conduit sizes in electrical installations.

Suited for electricians joining mismatched conduit

This washer suits installers who need to connect a larger conduit body or box to a smaller raceway. It is not for buyers who require a coupling for same-size conduit, a threaded adapter for pipe threads, or a non-metallic reducer for corrosion-prone environments.

Simple installation with basic tools

The washer seats between the conduit fitting and the box or enclosure, secured by the fitting's locknut. No specialised tooling is required. The main risk is cross-threading the locknut or omitting the washer, which leaves the reduction unsealed and mechanically weak.

Highlights

  • Reduces conduit size from 3-1/2 in to 3/4 in for flexible installations
  • Steel construction with PVC coating resists corrosion in damp environments
  • Model RW92 ensures correct fit for DOTTIE conduit systems
  • New condition guarantees full structural integrity out of the box
  • Combines metal strength with non-conductive PVC for safer electrical runs

Specifications

BrandDOTTIE

Questions about this item

What size conduit or fitting must I already have for the 3-1/2 in side of this reducing washer to seat properly?

You need a 3-1/2 in conduit, hub or knockout opening so the washer's larger face sits flat and the 3/4 in centre hole aligns with the smaller pipe.

Will the steel-and-PVC construction of the RW92 hold up when paired with older rigid metal conduit that has seen years of service?

Yes, the steel body resists corrosion and the PVC liner protects the cable jacket, so it installs cleanly on aged RMC without damaging either surface.

How can I confirm the RW92 is seated correctly after I tighten the locknut?

The washer should sit flush against the box or enclosure with no visible gap, and the 3/4 in centre hole must be concentric with the conduit passing through it.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.