---
product_id: 56348142
title: "McAlpine TUN5-CL Straight Through Tun Valve - White"
brand: "mcalpine"
price: "€ 54.44"
currency: EUR
in_stock: true
reviews_count: 9
category: "Mcalpine"
url: https://www.desertcart.hr/products/56348142-mcalpine-tun5-cl-straight-through-tun-valve-white
store_origin: HR
region: Croatia
---

# 22mm copper & 21mm overflow pipe compatible Integral non-return valve prevents backflow Visible tube for instant overflow detection McAlpine TUN5-CL Straight Through Tun Valve - White

**Brand:** mcalpine
**Price:** € 54.44
**Availability:** ✅ In Stock

## Summary

> 🚰 Stop leaks before they start — plumbing peace of mind in one sleek valve!

## Quick Answers

- **What is this?** McAlpine TUN5-CL Straight Through Tun Valve - White by mcalpine
- **How much does it cost?** € 54.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/56348142-mcalpine-tun5-cl-straight-through-tun-valve-white)

## Best For

- mcalpine enthusiasts

## Why This Product

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

## Key Features

- • **Backflow Blocker:** Built-in non-return valve stops unwanted water backflow, protecting your appliances.
- • **Compact & Reliable:** Space-saving design fits discreetly while delivering robust performance under pressure.
- • **Spring-Loaded Seal:** Mushroom plug with spring action guarantees a tight, leak-resistant closure every time.
- • **Instant Overflow Alerts:** Transparent tube design lets you spot overflow issues before they escalate.
- • **Universal Fit for Peace of Mind:** Seamlessly connects 22mm copper or 21mm overflow pipes, ensuring hassle-free installation.

## Overview

The McAlpine TUN5-CL Straight Through Tun Valve is a compact, white plumbing valve designed for 22mm copper or 21mm overflow pipes. Featuring a visible tube for easy overflow detection, an integral non-return valve to prevent backflow, and a spring-loaded mushroom plug for secure sealing, it offers reliable protection against flooding and backflow in washing machine and dishwasher setups. Lightweight and easy to install, it’s a trusted solution for modern plumbing challenges.

## Description

McAlpine TUN5-CL Tun valve Straight Through (Clear). Tun valve Straight Through (Clear) with 19/23mm Universal Connections. Manufacturers Code: TUN5-CL

Review: It's a compact decent unit - Fits great, works as needed
Review: ... a washing machine and dishwasher plumbed into the same waste pipe, when my dishwasher is off the drain ... - I have a washing machine and dishwasher plumbed into the same waste pipe, when my dishwasher is off the drain stays in the open position, I bought this to stop my washing machine flooding my kitchen, as when the washing machine discharges it’s water, it back flushes into the dishwasher and overflows. I’ve just tested the unit with my dishwasher only, and although I find the unit well constructed, it leaks from where the white plastics connector goes into the clear plastic body (hence the 4stars), this can be easily remedied by unscrewing the unit and either wrapping PTFE tape around the treaded part, or by giving it a wipe with a silicone mastic. Just tested the unit using my washing machine only, as the water discharged the seal worked perfectly no letting water by or leaks. Didn’t need to carry out a test as to when both washing machine and dishwasher washer are on, as mentioned, my dishwasher drain only stays open when it is turned off. I find that this is by far the best unit available for the problem I needed to solved, even with the leak (which at best is a minor inconvenience to fix). I would buy again and recommend to others.

## Features

- Suitable for 22mm copper or 21mm overflow pipe
- Visible tube to identify overflow problem
- Integral non return valve
- Spring loaded mushroom plug

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00JRD6186 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 66,138 in DIY & Tools ( See Top 100 in DIY & Tools ) 73 in Valves (DIY & Tools) 861 in Tap Parts |
| Colour | White |
| Customer Reviews | 4.1 4.1 out of 5 stars (55) |
| Date First Available | 17 April 2014 |
| Included Components | trap; fittings; |
| Item Package Quantity | 1 |
| Item Weight | 60 g |
| Item model number | TUN5-CL |
| Manufacturer | McAlpine |
| Material | Copper |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Part Number | TUN5-CL |
| Product Dimensions | 4.9 x 11.2 x 11.2 cm; 60 g |
| Size | 22mm/19mm |

## Product Details

- **Brand:** Mcalpine
- **Exterior finish:** Copper
- **Global Trade Identification Number:** 05036484028174
- **Inlet connection size:** 3/4 Inches
- **Inlet connection type:** Universal connection 19/23 mm
- **Item dimensions L x W x H:** 49 x 112 x 112 millimetres
- **Material:** Copper
- **Number of ports:** 2
- **Outlet connection size:** 0.87 Inches
- **Outlet connection type:** Copper

## Images

![McAlpine TUN5-CL Straight Through Tun Valve - White - Image 1](https://m.media-amazon.com/images/I/61mw-rbWmJL.jpg)
![McAlpine TUN5-CL Straight Through Tun Valve - White - Image 2](https://m.media-amazon.com/images/I/61DGbrDjFyL.jpg)

## Questions & Answers

**Q: will this work on my dishwasher discharge pipe as the crockery smells of dirty water.....**
A: I don't think it will as it is designed as an overflow, you need a ubend or trap to stop the drain smell coming back

**Q: can this product be fitted Horzontaly**
A: It would still function in a horizontal configuration as it is spring loaded as opposed to weighted/gravity dependant; but I would say that you need to ensure that there is no potential for grey water to be present on the downstream side of the valve as a quantity would be likely to transfer back across the valve as it operated; possibly resulting in contamination of the water supply. Hope this helps.....

**Q: Hi can this be used with a pressurised hot water cylinder, rather than the current open tundish which is causing headaches for me? Cheers**
A: I think regs require the tundish is open the cylinder is pressurised and would be very dangerous if the pressure could not escape though the pipe if it got blocked at the other end

**Q: Is this suitable for use between d1 and d2 pipes on a unvented cylinder installation?**
A: You need the HOTUN device for hot water unvented discharge.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It's a compact decent unit
*by H***R on 18 April 2024*

Fits great, works as needed

### ⭐⭐⭐⭐ ... a washing machine and dishwasher plumbed into the same waste pipe, when my dishwasher is off the drain ...
*by C***B on 26 May 2018*

I have a washing machine and dishwasher plumbed into the same waste pipe, when my dishwasher is off the drain stays in the open position, I bought this to stop my washing machine flooding my kitchen, as when the washing machine discharges it’s water, it back flushes into the dishwasher and overflows. I’ve just tested the unit with my dishwasher only, and although I find the unit well constructed, it leaks from where the white plastics connector goes into the clear plastic body (hence the 4stars), this can be easily remedied by unscrewing the unit and either wrapping PTFE tape around the treaded part, or by giving it a wipe with a silicone mastic. Just tested the unit using my washing machine only, as the water discharged the seal worked perfectly no letting water by or leaks. Didn’t need to carry out a test as to when both washing machine and dishwasher washer are on, as mentioned, my dishwasher drain only stays open when it is turned off. I find that this is by far the best unit available for the problem I needed to solved, even with the leak (which at best is a minor inconvenience to fix). I would buy again and recommend to others.

### ⭐⭐⭐⭐⭐ Under pressure.......
*by R***N on 23 June 2023*

Funny name but works as a thing.

## Frequently Bought Together

- McAlpine TUN5-CL Tunvalve Straight Through (Clear), White
- McAlpine �" Non-Return Valve R28-NRV

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-12*