---
product_id: 72994482
title: "Oatey 4 in. Mechanical End-of-Pipe Gripper Plug - 1 Each"
brand: "oatey"
price: "$26.51"
currency: USD
in_stock: true
category: "Oatey"
url: https://www.desertcart.us/products/72994482-oatey-4-in-mechanical-end-of-pipe-gripper-plug-1
store_origin: US
region: United States of America
---

# Fits 4-inch pipe ends perfectly Mechanical expansion for secure seal Extra-large wing nut for tool-free install Oatey 4 in. Mechanical End-of-Pipe Gripper Plug - 1 Each

**Brand:** oatey
**Price:** $26.51
**Availability:** ✅ In Stock

## Summary

> 🔴 Seal it like a pro—no tools, no hassle, just confidence.

## Quick Answers

- **What is this?** Oatey 4 in. Mechanical End-of-Pipe Gripper Plug - 1 Each by oatey
- **How much does it cost?** $26.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/72994482-oatey-4-in-mechanical-end-of-pipe-gripper-plug-1)

## 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

- • **Compact & Lightweight:** At just 8 ounces and 3.75 inches tall, it’s easy to carry and store in any professional toolkit.
- • **Versatile Application:** Perfect for both residential and commercial piping systems, making you the go-to expert on site.
- • **Reliable Pressure Holding:** Mechanically expands to create a rock-solid seal, ensuring your pressure tests never fail.
- • **Trusted Industry Standard:** Backed by Oatey’s 100+ years of plumbing expertise and a 4.7-star rating from nearly 2,000 pros.
- • **Effortless Tool-Free Installation:** The oversized wing nut lets you seal pipes quickly without any tools—saving time on every job.

## Overview

The Oatey 4-inch Mechanical End-of-Pipe Gripper Plug is a durable, plastic expansion plug designed for quick, tool-free sealing of pipe ends during pressure testing. Featuring an extra-large wing nut for easy installation and backed by over a century of Oatey plumbing expertise, it’s a trusted choice for both residential and commercial applications.

## Description

Product Description Oatey End-of-Pipe Gripper Plugs mechanically expand to seal the end of a pipe and hold pressure when testing a piping system. The extra large wing nut makes installation easy without tools. Oatey products have earned the trust of plumbing professionals for over 100 years. From the Manufacturer Oatey products can be found in residential and commercial applications and have achieved excellent brand name recognition with consumers. All products are backed with the highest quality technical and customer support programs in the industry

## Features

- Made in China

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000H5T1PI |
| Best Sellers Rank | #3,826 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Expansion Plugs |
| Brand Name | Oatey |
| Color | Red |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,900) |
| Global Trade Identification Number | 00038753334035 |
| Included Components | (1) Mechanical plug |
| Item Dimensions W x H | 1.75"W x 3.75"H |
| Item Type Name | 4-in. End of Pipe Gripper Mechanical Plug with Galvanized Screw and Wing Nut |
| Item Weight | 8 ounces |
| Manufacturer | Oatey |
| Manufacturer Part Number | 33403 |
| Manufacturer Warranty Description | 1 year limited. |
| Material Type | Plastic |
| Model Number | 33403 |
| Number of Items | 1 |
| UPC | 038753334035 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Oatey
- **Color:** Red
- **Item Weight:** 8 ounces
- **Material:** Plastic
- **Product Dimensions:** 1.75"W x 3.75"H

## Images

![Oatey 4 in. Mechanical End-of-Pipe Gripper Plug - 1 Each - Image 1](https://m.media-amazon.com/images/I/61n+a7FAwRL.jpg)

## Available Options

This product comes in different **Size** options.

## 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.

## 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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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-06-23*