---
product_id: 36157255
title: "Sigma Electric, Gray, Sigma Engineered Solutions ProConnex 49303 Rigid Reducing Washer 1-Inch to 3/4-Inch, 2-Pack, 2 Count, No Size"
brand: "sigma electric"
price: "A$11"
currency: AUD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.au/products/36157255-sigma-electric-gray-sigma-engineered-solutions-proconnex-49303-rigid-reducing
store_origin: AU
region: Australia
---

# cULus safety certified Precision size reduction 1" to 3/4" Durable zinc-plated steel Sigma Electric, Gray, Sigma Engineered Solutions ProConnex 49303 Rigid Reducing Washer 1-Inch to 3/4-Inch, 2-Pack, 2 Count, No Size

**Brand:** sigma electric
**Price:** A$11
**Availability:** ✅ In Stock

## Summary

> ⚡ Upgrade your electrical game with precision and durability!

## Quick Answers

- **What is this?** Sigma Electric, Gray, Sigma Engineered Solutions ProConnex 49303 Rigid Reducing Washer 1-Inch to 3/4-Inch, 2-Pack, 2 Count, No Size by sigma electric
- **How much does it cost?** A$11 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/36157255-sigma-electric-gray-sigma-engineered-solutions-proconnex-49303-rigid-reducing)

## Best For

- sigma electric enthusiasts

## Why This Product

- Trusted sigma electric brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Zinc-plated alloy steel ensures corrosion resistance and long-term durability.
- • **Dual Pack Convenience:** Two washers per pack meet installation needs without extra trips.
- • **Slim & Strong Profile:** Only 0.04 inches thick, combining minimal bulk with maximum strength.
- • **Perfect Fit, Every Time:** Seamlessly reduces 1-inch knockouts to 3/4-inch for flawless installations.
- • **Certified Safety Assurance:** cULus listing guarantees compliance with rigorous safety standards.

## Overview

The Sigma Electric ProConnex 49303 Rigid Reducing Washer is a zinc-plated alloy steel component designed to reduce 1-inch knockouts to 3/4-inch. Sold in convenient 2-packs, it features a slim 0.04-inch thickness and is cULus listed for safety compliance, making it an essential, durable solution for professional electrical installations.

## Description

The Sigma ProConnex Reducing Washers are used to decrease the size of a knockout in a steel outlet box or metal enclosure. Two of these zinc-plated steel reducing washers are required for each knockout. They are embossed for self-centering and easy installation.

## Features

- Used to reduce the size of a knockout
- Decreases the size of a 1-in knockout to 3/4-in
- Zinc-plated steel construction
- Two washers are required per knockout
- Product is cULus listed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Plastic |
| Outside Diameter | 1 Inches |
| Washer Type | Flat |
| Exterior Finish | Zinc |
| Fastener Size | M18 |
| Item Thickness | 0.3 Inches |
| Size | No Size |
| Metal Type | Alloy Steel |
| Brand | Sigma Electric |
| Color | Gray |
| Number of Pieces | 2 |
| Item dimensions L x W x H | 1.75 x 1.75 x 0.04 inches |
| UPC | 031857493035 |
| Manufacturer | Sigma Electric |
| Global Trade Identification Number | 00031857493035 |
| Part Number | 49303 |
| Item Weight | 0.598 ounces |
| Product Dimensions | 1.75 x 1.75 x 0.04 inches |
| Country of Origin | China |
| Item model number | 49303 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Measurement System | Inch |
| Included Components | Sigma Engineered Solutions Sigma Electric ProConnex 49303 Rigid Reducing Washer 1-Inch to 3/4-Inch, 2-Pack, Gray, 2 Count |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Warranty |

## Product Details

- **Material:** Plastic
- **Outside Diameter:** 1 Inches
- **Washer Type:** Flat
- **Exterior Finish:** Zinc
- **Fastener Size:** M18

## Images

![Sigma Electric, Gray, Sigma Engineered Solutions ProConnex 49303 Rigid Reducing Washer 1-Inch to 3/4-Inch, 2-Pack, 2 Count, No Size - Image 1](https://m.media-amazon.com/images/I/61bHnfPONRL.jpg)
![Sigma Electric, Gray, Sigma Engineered Solutions ProConnex 49303 Rigid Reducing Washer 1-Inch to 3/4-Inch, 2-Pack, 2 Count, No Size - Image 2](https://m.media-amazon.com/images/I/51vujbS+6zS.jpg)
![Sigma Electric, Gray, Sigma Engineered Solutions ProConnex 49303 Rigid Reducing Washer 1-Inch to 3/4-Inch, 2-Pack, 2 Count, No Size - Image 3](https://m.media-amazon.com/images/I/51DeVZCKw+L.jpg)
![Sigma Electric, Gray, Sigma Engineered Solutions ProConnex 49303 Rigid Reducing Washer 1-Inch to 3/4-Inch, 2-Pack, 2 Count, No Size - Image 4](https://m.media-amazon.com/images/I/61sS8TUNT0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Did the job
*by D***N on October 24, 2024*

No problems to report and completed the job

### ⭐⭐⭐⭐ Does  the job
*by A***R on March 27, 2022*

Works as it should but a little pricey

### ⭐ Incorrectly packed, missing part
*by S***T on May 21, 2021*

There was only one washer in the bag, it was sealed, and labeled 2 per bag.

## Frequently Bought Together

- Sigma Electric, Gray, Sigma Engineered Solutions ProConnex 49303 Rigid Reducing Washer 1-Inch to 3/4-Inch, 2-Pack, 2 Count, No Size
- Sigma Engineered Solutions ProConnex 49305 Rigid Reducing Washer 1-1/4-Inch to 3/4-Inch Conduit Fitting, 2-Pack
- Sigma Electric, Gray, Sigma Engineered Solutions ProConnex 49302 Rigid Reducing Washer 1-Inch to 1/2-Inch, 2-Pack, 2 Count, No Size

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**Shop now:** [https://www.desertcart.com.au/products/36157255-sigma-electric-gray-sigma-engineered-solutions-proconnex-49303-rigid-reducing](https://www.desertcart.com.au/products/36157255-sigma-electric-gray-sigma-engineered-solutions-proconnex-49303-rigid-reducing)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-27*