---
product_id: 325053484
title: "33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3-Inch, Red"
brand: "oatey"
price: "₩46855"
currency: KRW
in_stock: true
reviews_count: 5
category: "Oatey"
url: https://www.desertcart.kr/products/325053484-33402-mechanical-test-plug-3-in-5-psi-back-plastic
store_origin: KR
region: South Korea
---

# 110°F temperature tolerance for durable use 3-inch size for versatile pipe fitting 5 PSI back pressure rating for reliable sealing 33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3-Inch, Red

**Brand:** oatey
**Price:** ₩46855
**Availability:** ✅ In Stock

## Summary

> 🔴 Seal it, test it, trust it—plug into peace of mind!

## Quick Answers

- **What is this?** 33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3-Inch, Red by oatey
- **How much does it cost?** ₩46855 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/325053484-33402-mechanical-test-plug-3-in-5-psi-back-plastic)

## 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

- • **Rust-Proof Durability:** ABS glass-reinforced plastic and galvanized bolts ensure long-lasting corrosion resistance.
- • **Precision Fit & Safety:** Natural rubber O-ring expands perfectly to prevent leaks and plug slippage.
- • **Reliable Pressure Seal:** Rated for 5 PSI back pressure, confidently holds your system tight during tests.
- • **Versatile Compatibility:** Works seamlessly with most piping materials—your go-to plug for any job.
- • **Effortless Hand-Tightening:** Extra-large zinc wing nut means no wrench needed—tighten with ease and speed.

## Overview

The Oatey 33402 Mechanical Test Plug is a 3-inch, red ABS plastic plug designed for secure end-of-pipe sealing during pressure testing. Featuring a corrosion-resistant zinc wing nut for easy hand tightening, a natural rubber O-ring for superior sealing, and rated for 5 PSI back pressure at temperatures up to 110°F, it offers durable, reliable performance across most piping materials. Trusted by professionals for leak-proof confidence and long-lasting use.

## Description

OATEY test plug, mechanical, 3 in nominal, 5 psi back pressure, plastic, Red, 110 deg F, nsf listed. The OATEY 3 in. Plastic mechanical test plug helps seal piping or holds pressure while testing a piping system. The plastic body has minimal to no rusting or corroding for a long-lasting use. The plug's wing nut helps make tightening and removing the plug easy.

Review: I opened the cap of my basement cleanout to find that it was missing the plug that is supposed to be there to seal it. Instead, someone had stuffed a large amount of plastic sheeting down it instead - not a good solution. Popped this into the cleanout, turned the large oversized wing nut easily by hand to tighten down and now I feel way more confident that sewer gasses aren't going to be leaking out. It's a simple little thing, but it's made well and I expect it to last forever.
Review: exelnte sercio y calidad del producto los tiempos de entrega fueron los estipulados

## Features

- Size: 3 Inch.End of Pipe Gripper plugs are made with ABS glass-reinforced plates for added strength
- Extra large zinc wing nut for ease of tightening, no wrench required, and will not rust
- Natural rubber O-ring for excellent expansion and memory
- Plug is rated for 17 PSI or 40-ft of head pressure
- End-of-pipe seals only at the end of a pipe, preventing plug from falling into stack.Galvanized carriage bolt to prevent corrosion.Galvanized 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 | B000H5WVQY |
| Best Sellers Rank | #130,313 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,021 in Industrial Pipe Fittings |
| Brand | Oatey |
| Color | Red |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,250) |
| Date First Available | 18 August 2012 |
| Item Weight | 174 g |
| Material | Metal |
| Model Number | 33402 |
| Product Dimensions | 10.16 x 10.16 x 10.16 cm; 174 g |

## Product Details

- **Brand:** Oatey
- **Colour:** Red
- **Material:** Metal
- **Product dimensions:** 10.2W x 10.2H centimeters
- **UPC:** 038753334028

## Images

![33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3-Inch, Red - Image 1](https://m.media-amazon.com/images/I/81gs4rR44HL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***. on 28 November 2019*

I opened the cap of my basement cleanout to find that it was missing the plug that is supposed to be there to seal it. Instead, someone had stuffed a large amount of plastic sheeting down it instead - not a good solution. Popped this into the cleanout, turned the large oversized wing nut easily by hand to tighten down and now I feel way more confident that sewer gasses aren't going to be leaking out. It's a simple little thing, but it's made well and I expect it to last forever.

### ⭐⭐⭐⭐⭐ Review
*by H***. on 13 January 2023*

exelnte sercio y calidad del producto los tiempos de entrega fueron los estipulados

### ⭐⭐⭐⭐⭐ Review
*by H***. on 19 June 2025*

Nice product but slightly overpriced

## Frequently Bought Together

- 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
- Oatey 33403 4-in. End of Pipe Gripper Mechanical Plug with Galvanized Screw and Wing Nut, 4 Inch, Red

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-12*