---
product_id: 165973091
title: "4\" Steel Drain Test Plug"
brand: "primaflow"
price: "€ 31.04"
currency: EUR
in_stock: true
reviews_count: 5
category: "Primaflow"
url: https://www.desertcart.be/products/165973091-4-steel-drain-test-plug
store_origin: BE
region: Belgium
---

# Durable alloy steel build 4-inch precision fit UK-made quality assurance 4" Steel Drain Test Plug

**Brand:** primaflow
**Price:** € 31.04
**Availability:** ✅ In Stock

## Summary

> 🔧 Plug into perfection — don’t let leaks steal your peace of mind!

## Quick Answers

- **What is this?** 4" Steel Drain Test Plug by primaflow
- **How much does it cost?** € 31.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/165973091-4-steel-drain-test-plug)

## Best For

- primaflow enthusiasts

## Why This Product

- Trusted primaflow brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Perfect 4" Fit:** Seamlessly plugs standard 4-inch drains for hassle-free testing and sealing.
- • **Quick & Reusable:** Easily installed and removed, ideal for temporary or permanent drainage solutions.
- • **Rugged Alloy Steel:** Engineered from premium alloy steel for unmatched durability and corrosion resistance.
- • **Versatile Application:** Perfect for plumbing tests, extractor fan ducts, and emergency drain sealing.
- • **Trusted UK Craftsmanship:** Proudly manufactured in the UK, ensuring top-tier quality and reliability.

## Overview

The 4" Steel Drain Test Plug by Primaflow is a robust, alloy steel plug designed to fit standard 4-inch drains. Manufactured in the UK, it offers reliable, reusable sealing for plumbing tests and drainage maintenance, combining durability with easy installation to keep your systems leak-proof and efficient.

## Description

4" Steel DrainTest Plug

Review: Fits a 4 inch drain - Does the job perfectly.
Review: Excellent. - We had a downstairs toilet built which never warmed up despite having a heater fitted. I used this to plug the 4” duct from extractor fan to outside so I can easily reinstate it if needed, warm as toast now.

## Features

- WASTE & DRAINAGE TOOLS
- External Drainage
- Test Plugs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00PFXQWOA |
| Best Sellers Rank | 54,111 in DIY & Tools ( See Top 100 in DIY & Tools ) 12 in Plumbing Testing Equipment |
| Brand Name | Primaflow |
| Colour | Black, Gold |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.4 4.4 out of 5 stars (27) |
| Item Weight | 0.1 Kilograms |
| Manufacturer | Primaflow |
| Manufacturer Part Number | Primaflow |
| Material Type | Alloy Steel |
| Number of Items | 1 |

## Product Details

- **Brand:** Primaflow
- **Colour:** Black, Gold
- **Item weight:** 0.1 Kilograms
- **Material:** Alloy Steel
- **Number of items:** 1

## Images

![4" Steel Drain Test Plug - Image 1](https://m.media-amazon.com/images/I/61eQO3Ina3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fits a 4 inch drain
*by C***N on 1 September 2025*

Does the job perfectly.

### ⭐⭐⭐⭐⭐ Excellent.
*by C***0 on 18 December 2024*

We had a downstairs toilet built which never warmed up despite having a heater fitted. I used this to plug the 4” duct from extractor fan to outside so I can easily reinstate it if needed, warm as toast now.

### ⭐⭐⭐⭐⭐ Happy with it
*by R***2 on 9 November 2024*

good solid product and good fitting and good sealing with thread. Happy with the product

## Frequently Bought Together

- 4" Steel Drain Test Plug
- Bailey 4074 Drain Test Kit

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**Shop now:** [https://www.desertcart.be/products/165973091-4-steel-drain-test-plug](https://www.desertcart.be/products/165973091-4-steel-drain-test-plug)

---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-04-30*