---
product_id: 56348142
title: "McAlpine TUN5-CL Tunvalve Straight Through (Clear), White"
brand: "mcalpine"
price: "NT$1677"
currency: TWD
in_stock: true
url: https://www.desertcart.tw/products/56348142-mcalpine-tun5-cl-tunvalve-straight-through-clear-white
store_origin: TW
region: Taiwan
---

# Visible tube for quick overflow detection Integral non-return valve prevents backflow Universal 19/23mm connections for versatile fit McAlpine TUN5-CL Tunvalve Straight Through (Clear), White

**Brand:** mcalpine
**Price:** NT$1677
**Availability:** ✅ In Stock

## Summary

> 🚰 Clear, clever, and essential – the valve your plumbing deserves!

## Quick Answers

- **What is this?** McAlpine TUN5-CL Tunvalve Straight Through (Clear), White by mcalpine
- **How much does it cost?** NT$1677 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/56348142-mcalpine-tun5-cl-tunvalve-straight-through-clear-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? Not on your watch.:** Built-in non-return valve ensures water flows only one way, protecting your system.
- • **Fits like a glove, every time.:** Universal 19/23mm connections compatible with 22mm copper or 21mm overflow pipes.
- • **Overflow issues? Instantly spotted!:** Clear tube design lets you monitor overflow problems without guesswork.
- • **Compact & lightweight for seamless installation.:** At just 60g and 11.2cm, it fits discreetly into any setup.
- • **Spring-loaded mushroom plug for hassle-free maintenance.:** Easily isolate and service your plumbing without fuss.

## Overview

The McAlpine TUN5-CL Tunvalve Straight Through (Clear) is a compact, lightweight 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 universal 19/23mm connections, it ensures reliable, hassle-free plumbing performance with quick maintenance thanks to its spring-loaded mushroom plug.

## Description

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

## 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 |
|---------------|-------|
| Manufacturer | McAlpine |
| Part Number | TUN5-CL |
| Product Dimensions | 4.9 x 11.2 x 11.2 cm; 60 g |
| Item model number | TUN5-CL |
| Size | 22mm/19mm |
| Colour | White |
| Material | Copper |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Measurement System | Metric |
| Included Components | trap; fittings; |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 60 g |

## Product Details

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

## Images

![McAlpine TUN5-CL Tunvalve Straight Through (Clear), White - Image 1](https://m.media-amazon.com/images/I/61mw-rbWmJL.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.

## 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 Taiwan*
*Store origin: TW*
*Last updated: 2026-02-02*