---
product_id: 270164774
title: "33403 Plastic Plug (with Galvanized screw and wing nut), 4-Inch"
brand: "oatey"
price: "29743CFA"
currency: XOF
in_stock: true
reviews_count: 1
category: "Oatey"
url: https://www.desertcart.sn/products/270164774-33403-plastic-plug-with-galvanized-screw-and-wing-nut-4
store_origin: SN
region: Senegal
---

# 4-inch nominal size Galvanized screw & wing nut 5 PSI max back pressure 33403 Plastic Plug (with Galvanized screw and wing nut), 4-Inch

**Brand:** oatey
**Price:** 29743CFA
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal the deal with confidence — the plug pros trust!

## Quick Answers

- **What is this?** 33403 Plastic Plug (with Galvanized screw and wing nut), 4-Inch by oatey
- **How much does it cost?** 29743CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/270164774-33403-plastic-plug-with-galvanized-screw-and-wing-nut-4)

## Best For

- oatey enthusiasts

## Why This Product

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

## Key Features

- • **NSF Certified Quality:** Backed by NSF listing, guaranteeing safety and compliance for professional-grade applications.
- • **Durable Hardware Combo:** Includes galvanized screw and ergonomic wing nut for easy installation and long-lasting strength.
- • **Heat-Resistant Reliability:** Rated for up to 110°F, perfect for demanding plumbing environments without compromise.
- • **Pressure-Ready Performance:** Designed to withstand up to 5 PSI air pressure on plastic pipes, ensuring reliable testing and sealing.
- • **Precision Fit, Maximum Seal:** 4-inch plastic plug engineered for a secure, leak-proof fit on most piping materials.

## Overview

The Oatey 33403 Plastic Mechanical Test Plug is a 4-inch, red plastic plug designed for secure sealing and testing of pipes up to 5 PSI back pressure. Featuring a galvanized screw and wing nut for easy installation, it withstands temperatures up to 110°F and is NSF listed for professional reliability across various piping materials.

## Description

Oatey Test Plug, Mechanical, 4 in Nominal, 5 psi Back Pressure, Plastic, Red, 110 deg F, NSF Listed. .

Review: Fantastic - Only hope is it lasts forever. If the wing nut design could have been changed to be flush with the floor, it would be an added advantage

## Features

- Plastic mechanical plugs have a wide usage range making them effective on most piping material
- Maximum allowed air is 5 PSIG on plastic and 2 PSIG on galvanized
- Plastic mechanical plugs are premium plugs designed to hold higher pressures

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000H5T1PI |
| Best Sellers Rank | #69,033 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #439 in Industrial Pipe Fittings |
| Brand | Oatey |
| Brand Name | Oatey |
| Color | Red |
| Colour | Red |
| Country of Publication | China |
| Customer Reviews | 4.7 out of 5 stars 1,736 Reviews |
| Global Trade Identification Number | 00038753334035 |
| Included Components | Electrical & Heating;Cord & Power Management;electric-plugs |
| Item Dimensions W x H | 9.5W x 9.5H centimeters |
| Item Type Name | Mechanical Test Plug, 4 In, 5 Psi Back, Plastic, 110 Deg F |
| Item Weight | 227 g |
| Item weight | 227 g |
| Manufacturer | Oatey |
| Material | Plastic |
| Material Type | Plastic |
| Product dimensions | 9.5W x 9.5H centimeters |
| UPC | 038753334035 |
| Unit Count | 1.0 Count |

## Product Details

- **Material:** Plastic
- **Brand:** Oatey
- **Colour:** Red
- **Product dimensions:** 9.5W x 9.5H centimeters
- **Item weight:** 227 g

## Images

![33403 Plastic Plug (with Galvanized screw and wing nut), 4-Inch - Image 1](https://m.media-amazon.com/images/I/61VTSq2yS0L.jpg)

## Questions & Answers

**Q: What size is the bolt and how long is it?  Thanks.**
A: I measured the bolt at 3/8" threaded diameter with 2 1/4" of threaded length. Since this is not specified in the description and other bolt lengths would work the same, it may be you'd end up with a different bolt length.

**Q: Would this stand up to the abuse of an ATV, as a dry storage tube cap?**
A: I would think so. It’s pretty sturdy

**Q: Will this seal the 31/4" cleanout hole in 4" cast iron sewer line?**
A: This plug properly fits a 4" hole. Mine is in use so I cannot measure it. However, I also purchased the 3" plug and I believe it would be more appropriate. At max, it achieves about 3 1/8 seal. If you wrap enough material around the 3" you might get a more usable product.

**Q: End of RV slinky storage tube is 4.5 " diameter.  When rubber is compressed will this be tight enough to survive vibration of normal travel?**
A: It's meant to hold fast in a firm pipe, like PVC.  I wouldn't recommend it for a hose or pipe with give. The rubber gasket only moves out a little bit when tightened. Maybe you could get a large hose clamp and tighten it down outside your hose after you cover the end with aluminum foil.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fantastic
*by N***O on 13 October 2024*

Only hope is it lasts forever. If the wing nut design could have been changed to be flush with the floor, it would be an added advantage

## Frequently Bought Together

- Oatey 33403 4-in. End of Pipe Gripper Mechanical Plug with Galvanized Screw and Wing Nut, 4 Inch, Red
- Oatey 33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3 Inch, Red
- Oatey 33400 Mechanical End-of-Pipe Gripper Plug, 1-1/2 in., Red, 1 Count

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**Shop now:** [https://www.desertcart.sn/products/270164774-33403-plastic-plug-with-galvanized-screw-and-wing-nut-4](https://www.desertcart.sn/products/270164774-33403-plastic-plug-with-galvanized-screw-and-wing-nut-4)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-12*