---
product_id: 49285005
title: "L&S Engineers Steel Drain Test Plug - 3\" (75mm) Outlet 1/2\" Black Alloy Steel"
brand: "l&s engineers"
price: "₨12783"
currency: LKR
in_stock: true
reviews_count: 3
category: "L&S Engineers"
url: https://www.desertcart.lk/products/49285005-l-and-s-engineers-steel-drain-test-plug-3-75mm
store_origin: LK
region: Sri Lanka
---

# Max back pressure 20 psi Fits pipes ID 73-92mm 3" (75mm) outlet size L&S Engineers Steel Drain Test Plug - 3" (75mm) Outlet 1/2" Black Alloy Steel

**Brand:** l&s engineers
**Price:** ₨12783
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal the deal with confidence — the pro’s choice for flawless drain testing!

## Quick Answers

- **What is this?** L&S Engineers Steel Drain Test Plug - 3" (75mm) Outlet 1/2" Black Alloy Steel by l&s engineers
- **How much does it cost?** ₨12783 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/49285005-l-and-s-engineers-steel-drain-test-plug-3-75mm)

## Best For

- l&s engineers enthusiasts

## Why This Product

- Trusted l&s engineers brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **High Pressure Resilience:** Withstands up to 20 psi back pressure, perfect for demanding drain testing scenarios.
- • **Optimized Insertion Depth:** Minimum insertion of 34mm guarantees secure placement without guesswork.
- • **UK Warehouse Fast Delivery:** Get your hands on this essential tool quickly with prompt shipping and hassle-free returns.
- • **Robust Alloy Steel Construction:** Crafted from durable black alloy steel for long-lasting performance under pressure.
- • **Precision Fit for Versatile Pipes:** Seamlessly fits pipe IDs from 73mm to 92mm, ensuring a snug, reliable seal every time.

## Overview

The L&S Engineers Steel Drain Test Plug is a heavy-duty 3" (75mm) outlet plug designed to fit pipes with internal diameters between 73mm and 92mm. Made from black alloy steel, it offers a secure seal with a minimum insertion depth of 34mm and can withstand back pressure up to 20 psi. Ideal for professional plumbing testing, it ships fast from the UK with a no-quibble returns policy.

## Description

Steel Drain Test Plug. Type: 3" (150mm) . Outlet: 1/2". Will fit pipes with ID: 73mm - 92mm. Minimum insertion into pipe: 34mm. Length of Plug: 80.5mm. Maximum Allowable back pressure: 20p.s.i

Review: Purge bungs - I use it for purging pipework great bits of kit
Review: Stiff thread makes it difficult to fit. - I had to use grips on the threaded section to stop the whole thing turning while i tightened the wing nut. It does seam to seal okay once in place. Not as good as the Bailey version which uses a nylon nut and has softer rubber.

## Features

- Steel Drain Test Plug. Type: 3" (150mm) . Outlet: 1/2". Will fit pipes with ID: 73mm - 92mm. Minimum insertion into pipe: 34mm. Length of Plug: 80.5mm. Maximum Allowable back pressure: 20p.s.i
- Trade Prices
- Fast Delivery From Our UK Warehouse
- No Quibble Returns Policy

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0051OCFVC |
| Best Sellers Rank | 346,384 in DIY & Tools ( See Top 100 in DIY & Tools ) 165 in Plumbing Testing Equipment |
| Brand | L&S Engineers |
| Brand Name | L&S Engineers |
| Colour | Black, Gold |
| Customer Reviews | 3.8 out of 5 stars 13 Reviews |
| Item Dimensions W x H | 7.5W x 8.1H centimetres |
| Item Weight | 0.29 Kilograms |
| Item weight | 0.29 Kilograms |
| Manufacturer | L&S Engineers |
| Manufacturer Part Number | 200497 |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Number of Items | 1 |
| Number of items | 1 |
| Product dimensions | 7.5W x 8.1H centimetres |

## Product Details

- **Brand:** L&S Engineers
- **Colour:** Black, Gold
- **Item weight:** 0.29 Kilograms
- **Material:** Alloy Steel
- **Product dimensions:** 7.5W x 8.1H centimetres

## Images

![L&S Engineers Steel Drain Test Plug - 3" (75mm) Outlet 1/2" Black Alloy Steel - Image 1](https://m.media-amazon.com/images/I/71BIqwTz4CL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Purge bungs
*by I***. on 20 December 2023*

I use it for purging pipework great bits of kit

### ⭐⭐ Stiff thread makes it difficult to fit.
*by P***Y on 18 February 2022*

I had to use grips on the threaded section to stop the whole thing turning while i tightened the wing nut. It does seam to seal okay once in place. Not as good as the Bailey version which uses a nylon nut and has softer rubber.

### ⭐⭐⭐⭐⭐ Five Stars
*by S***S on 17 October 2014*

Very well made and robust, I've used it several times without problem.

## Frequently Bought Together

- L&S Engineers Steel Drain Test Plug - 3" (75mm) Outlet 1/2" Black Alloy Steel
- L&S Engineers Steel Drain Test Plug - 4" (100mm) Outlet 1/2"

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.lk/products/49285005-l-and-s-engineers-steel-drain-test-plug-3-75mm](https://www.desertcart.lk/products/49285005-l-and-s-engineers-steel-drain-test-plug-3-75mm)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-09-09*