---
product_id: 325053484
title: "Oatey 33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3-Inch, Red"
brand: "oatey"
price: "฿1844"
currency: THB
in_stock: true
reviews_count: 5
category: "Oatey"
url: https://www.desertcart.co.th/products/325053484-oatey-33402-mechanical-test-plug-3-in-5-psi-back
store_origin: TH
region: Thailand
---

# 3-inch precision fit Extra-large zinc wing nut, no wrench needed 5 PSI back pressure rating Oatey 33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3-Inch, Red

**Brand:** oatey
**Price:** ฿1844
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it tight, test it right — the pro’s choice for leak-proof confidence!

## Quick Answers

- **What is this?** Oatey 33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3-Inch, Red by oatey
- **How much does it cost?** ฿1844 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/325053484-oatey-33402-mechanical-test-plug-3-in-5-psi-back)

## 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

- • **High-Pressure Ready:** Rated to hold up to 5 PSI back pressure, perfect for demanding plumbing tests.
- • **End-of-Pipe Safety Lock:** Designed to seal securely at pipe ends, preventing accidental plug loss into stacks.
- • **Effortless Hand-Tightening:** Oversized zinc wing nut ensures quick, rust-free adjustments without tools.
- • **Durable ABS Reinforced Body:** Glass-reinforced plastic construction for long-lasting strength and corrosion resistance.
- • **Reliable Seal with Natural Rubber:** Premium O-ring delivers superior expansion and memory for leak-proof testing.

## Overview

The Oatey 33402 Mechanical Test Plug is a 3-inch, red ABS plastic plug engineered for reliable 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 a 5 PSI back pressure rating, it ensures durable, rust-free performance at temperatures up to 110°F. Trusted by professionals for secure end-of-pipe sealing 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 | #132,321 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,039 in Industrial Pipe Fittings |
| Brand | Oatey |
| Color | Red |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,254) |
| 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

![Oatey 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)
![Oatey 33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3-Inch, Red - Image 2](https://m.media-amazon.com/images/I/71ofPTaofZL.jpg)
![Oatey 33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3-Inch, Red - Image 3](https://m.media-amazon.com/images/I/81FwDIsRb5L.jpg)
![Oatey 33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3-Inch, Red - Image 4](https://m.media-amazon.com/images/I/61FRcpy0d6L.jpg)
![Oatey 33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3-Inch, Red - Image 5](https://m.media-amazon.com/images/I/91UCVw2+HAL.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 Thailand*
*Store origin: TH*
*Last updated: 2026-03-02*