---
product_id: 266681600
title: "Oatey 33400 Mechanical Test Plug, 1-1/2 in, 5 Psi Back, Plastic, Red 110 Deg F, Multicolor, 1.5 Inch"
brand: "oatey"
price: "€ 31.84"
currency: EUR
in_stock: true
reviews_count: 5
category: "Oatey"
url: https://www.desertcart.de/products/266681600-oatey-33400-mechanical-test-plug-1-1-2-in-5
store_origin: DE
region: Germany
---

# 1.5-inch precision fit 5 PSI pressure rating Made in USA quality Oatey 33400 Mechanical Test Plug, 1-1/2 in, 5 Psi Back, Plastic, Red 110 Deg F, Multicolor, 1.5 Inch

**Brand:** oatey
**Price:** € 31.84
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it tight, test it right — don’t let leaks steal your flow!

## Quick Answers

- **What is this?** Oatey 33400 Mechanical Test Plug, 1-1/2 in, 5 Psi Back, Plastic, Red 110 Deg F, Multicolor, 1.5 Inch by oatey
- **How much does it cost?** € 31.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/266681600-oatey-33400-mechanical-test-plug-1-1-2-in-5)

## 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 & Versatile:** Perfectly sized for 1-1/2 inch pipes, ideal for both new installs and repairs.
- • **Effortless Operation:** Wing nut design enables quick tightening and removal—no extra tools needed.
- • **Rust-Free Reliability:** Durable plastic body resists rust and corrosion for long-lasting performance.
- • **Secure Mechanical Seal:** Engineered to seal pipes internally, ensuring leak-proof pressure testing.
- • **Trusted American Craftsmanship:** Proudly made in the USA, combining quality with peace of mind.

## Overview

The Oatey 33400 Mechanical Test Plug is a 1-1/2 inch plastic plug designed to mechanically seal pipes for pressure testing up to 5 PSI. Featuring a corrosion-resistant body and an easy-to-use wing nut, it ensures a secure, leak-proof fit inside pipes. Made in the USA, this compact plug is a trusted choice for professionals seeking reliable, durable plumbing solutions.

## Description

Designed for use to seal piping or to hold pressure while testing your piping system. The Oatey 1-1/2 in. Plastic mechanical test plug mechanically seals inside the designated pipe. Excellent for plugging open-ended 1-1/2 in. Pipes.

Review: Perfect fit for an old copper drain pipe i cut off. Nice and tight fit. Seems very good quality.
Review: I ordered it to stop up the leaking, it works well. Good size and fits well. I hope for durability.

## Features

- Plastic body will not rust or corrode
- Wing nut allows for easy tightening and removal
- Seals inside pipe mechanically
- Made in USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000H5WPDI |
| Best Sellers Rank | #105,582 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #180 in Hardware Plugs |
| Brand | Oatey |
| Color | Multicolor |
| Customer Reviews | 4.6 4.6 out of 5 stars (908) |
| Date First Available | 11 March 2013 |
| Item Weight | 45.4 g |
| Material | Plastic |
| Model Number | 33400 |
| Product Dimensions | 3.18 x 3.18 x 3.81 cm; 45.36 g |

## Product Details

- **Brand:** Oatey
- **Colour:** Multicolor
- **Item weight:** 45 g
- **Material:** Plastic
- **Product dimensions:** 43.2W x 29.2H centimeters

## Images

![Oatey 33400 Mechanical Test Plug, 1-1/2 in, 5 Psi Back, Plastic, Red 110 Deg F, Multicolor, 1.5 Inch - Image 1](https://m.media-amazon.com/images/I/81lOLHEUdXL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by 6***S on 5 December 2025*

Perfect fit for an old copper drain pipe i cut off. Nice and tight fit. Seems very good quality.

### ⭐⭐⭐⭐⭐ Review
*by D***N on 13 November 2025*

I ordered it to stop up the leaking, it works well. Good size and fits well. I hope for durability.

### ⭐⭐⭐ Review
*by M***U on 25 November 2025*

It did not fit

## Frequently Bought Together

- Oatey 33400 Mechanical End-of-Pipe Gripper Plug, 1-1/2 in., Red, 1 Count
- Oatey 33402 Mechanical Test Plug, 3 in, 5 Psi Back, Plastic, 110 Deg F, 3 Inch, Red
- Eastman 2 Inch IPS Mechanical Test Plug, Screw and Zinc Nut, ABS, 78033

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**Shop now:** [https://www.desertcart.de/products/266681600-oatey-33400-mechanical-test-plug-1-1-2-in-5](https://www.desertcart.de/products/266681600-oatey-33400-mechanical-test-plug-1-1-2-in-5)

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-03-08*