---
product_id: 72994482
title: "Oatey 33403 Mechanical End-of-Pipe Gripper Plug, 4 in., Red"
brand: "oatey"
price: "€ 20.76"
currency: EUR
in_stock: true
category: "Oatey"
url: https://www.desertcart.gr/products/72994482-oatey-33403-mechanical-end-of-pipe-gripper-plug-4-in
store_origin: GR
region: Greece
---

# 17 PSI pressure rating Mechanical end-of-pipe seal ABS glass-reinforced strength Oatey 33403 Mechanical End-of-Pipe Gripper Plug, 4 in., Red

**Brand:** oatey
**Price:** € 20.76
**Availability:** ✅ In Stock

## Summary

> 🔴 Seal it tight, test it right—plug into pro-grade performance!

## Quick Answers

- **What is this?** Oatey 33403 Mechanical End-of-Pipe Gripper Plug, 4 in., Red by oatey
- **How much does it cost?** € 20.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/72994482-oatey-33403-mechanical-end-of-pipe-gripper-plug-4-in)

## 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

- • **Secure Mechanical Grip:** Innovative mechanical expansion prevents plug from falling into pipe stacks
- • **Effortless Installation:** Extra-large wing nut allows quick, tool-free setup—get the job done faster
- • **Durable Reinforced Build:** Crafted with ABS glass-reinforced plates to withstand tough jobsite demands
- • **Pressure-Tested Reliability:** Seals pipes up to 17 PSI or 40 ft. head pressure for confident system testing
- • **Corrosion-Resistant Components:** Zinc-plated steel handle and galvanized carriage bolt ensure long-lasting performance

## Overview

The Oatey 33403 Mechanical End-of-Pipe Gripper Plug is a robust 4-inch pipe plug designed for secure, pressure-tested sealing up to 17 PSI. Featuring ABS glass-reinforced plates and corrosion-resistant hardware, it ensures durability and reliability in both residential and commercial plumbing applications. Its mechanical expansion design prevents accidental dislodging, while the large wing nut enables quick, tool-free installation, making it a trusted choice for professionals.

## 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

- End-of-pipe plug seals or holds pressure to test piping system
- Plugs open-ended 4 in. pipes
- Made with ABS glass-reinforced plates for added strength
- Mechanically seals only at the end of a pipe, preventing plug from falling into stack
- Rated for 17 PSI or 40 ft. of head pressure
- Can be used in long-term applications
- Plastic plug body will not rust or corrode
- Natural, chemical-resistant rubber O-ring for excellent expansion and memory
- Zinc-plated steel handle
- Galvanized carriage bolt to prevent corrosion

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000H5T1PI |
| Best Sellers Rank | #3,165 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Expansion Plugs |
| Brand | Oatey |
| Brand Name | Oatey |
| Color | Red |
| Customer Reviews | 4.7 out of 5 stars 1,977 Reviews |
| 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 | Plastic |
| Material Type | Plastic |
| Model Number | 33403 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Dimensions | 1.75"W x 3.75"H |
| UPC | 038753334035 |
| Unit Count | 1 Count |

## Product Details

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

## Images

![Oatey 33403 Mechanical End-of-Pipe Gripper Plug, 4 in., Red - Image 1](https://m.media-amazon.com/images/I/61n+a7FAwRL.jpg)
![Oatey 33403 Mechanical End-of-Pipe Gripper Plug, 4 in., Red - Image 2](https://m.media-amazon.com/images/I/81FwDIsRb5L.jpg)
![Oatey 33403 Mechanical End-of-Pipe Gripper Plug, 4 in., Red - Image 3](https://m.media-amazon.com/images/I/717EZzqgBcL.jpg)

## Available Options

This product comes in different **Number Of Items** 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 Greece*
*Store origin: GR*
*Last updated: 2026-10-24*