---
product_id: 140265341
title: "McAlpine 1-1/4\" Self Closing Space Saver Basin Waste Trap WHB-1 | Compact Anti-Odour Trap for Cloakrooms & Basins | Horizontal Outlet | Hygienic, Durable Design"
brand: "mcalpine"
price: "€ 1.83"
currency: EUR
in_stock: false
url: https://www.desertcart.fi/products/140265341-mcalpine-1-1-4-self-closing-space-saver-basin-waste
store_origin: FI
region: Finland
---

# 62mm ultra-compact height Self-closing valve tech Tool-free easy cleaning McAlpine 1-1/4" Self Closing Space Saver Basin Waste Trap WHB-1 | Compact Anti-Odour Trap for Cloakrooms & Basins | Horizontal Outlet | Hygienic, Durable Design

**Brand:** mcalpine
**Price:** € 1.83
**Availability:** ❌ Out of Stock

## Summary

> 🚿 Compact power, zero odour – the smart trap your basin deserves!

## Quick Answers

- **What is this?** McAlpine 1-1/4" Self Closing Space Saver Basin Waste Trap WHB-1 | Compact Anti-Odour Trap for Cloakrooms & Basins | Horizontal Outlet | Hygienic, Durable Design by mcalpine
- **How much does it cost?** € 1.83 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/140265341-mcalpine-1-1-4-self-closing-space-saver-basin-waste)

## 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

- • **Durability Meets Design:** Lightweight yet robust, this trap is engineered to last, ensuring long-term reliability in high-use environments.
- • **Maximize Your Storage Space:** Compact 62mm height fits seamlessly under any basin cabinet, freeing up valuable room for your essentials.
- • **Maintenance Without the Mess:** Clean effortlessly without disassembly—just remove the split pin and rinse the membrane for a fresh, clog-free trap.
- • **Flexible Plumbing Made Simple:** Built-in air intake valve eliminates the need for secondary ventilation, giving you more freedom in pipe layout.
- • **Odour-Free Freshness Guaranteed:** Innovative self-closing membrane blocks foul smells and sewer gases, keeping your cloakroom hygienic and inviting.

## Overview

The McAlpine WHB-1 is a compact 1¼" self-closing basin waste trap designed to save space and prevent odours with its innovative membrane valve. Its 62mm height fits neatly under basins, while the self-sealing mechanism blocks sewer gases without needing a water seal, eliminating evaporation issues. The trap also features an integrated air intake for flexible plumbing layouts and can be easily cleaned without full disassembly, making it a hygienic, durable, and maintenance-friendly solution for cloakrooms and basins.

## Description

Wash Hand Basin Space Saver with Self-Closing Waste Valve - 1¼" BSP female inlet nut x 1¼" universal compression outlet Designed to allow full use of storage space below the basin within the cabinet or furniture. The internal membrane opens under water pressure to allow discharge to flow freely and then closes to form a seal to prevent foul odour or sewer gas from entering the building. The valve allows air to be drawn into the discharge waste pipe when negative pressures occur and eliminates the need for secondary ventilation to the discharge pipework, allowing greater flexibility in the plumbing design. Easily cleaned without having to disassemble the discharge pipework. Simply remove the split pin at the front of the valve, take out the plug and membrane and clean in hot soapy water, reassemble and relocate the split pin in the slot provided. The WHB self-cleaning waste valve having no water seal can never dry out through evaporation or lack of use of the basin as the membrane seal remains closed.

## Features

- Compact design - 62mm overall height
- Self-closing waste valve
- Internal membrane opens under water pressure
- Allows greater flexibility in the plumbing design
- Easily cleaned without having to disassemble

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | McAlpine |
| Part Number | WHB-1 |
| Product Dimensions | 5.8 x 13.8 x 13.8 cm; 110 g |
| Item model number | WHB-1 |
| Colour | White |
| Item Package Quantity | 1 |
| Batteries included? | No |
| Batteries Required? | No |
| Battery description | Not Included |
| Item Weight | 110 g |

## Images

![McAlpine 1-1/4" Self Closing Space Saver Basin Waste Trap WHB-1 | Compact Anti-Odour Trap for Cloakrooms & Basins | Horizontal Outlet | Hygienic, Durable Design - Image 1](https://m.media-amazon.com/images/I/41oqEkKmYqL.jpg)
![McAlpine 1-1/4" Self Closing Space Saver Basin Waste Trap WHB-1 | Compact Anti-Odour Trap for Cloakrooms & Basins | Horizontal Outlet | Hygienic, Durable Design - Image 2](https://m.media-amazon.com/images/I/41M17n8CrAL.jpg)

## Questions & Answers

**Q: Could this be used for a washing machine trap?**
A: No, this is 11/4” size for basin.
For kitchen trap you need WV-1 . Which is 11/2” size.

Thanks

**Q: Is there a connection available to attach the waste from both my washing machine and dishwasher ?**
A: Not that I know of

**Q: Is one and a quarter 32mm**
A: Fits one and a quarter basin waste threaded outlet and I have connected to 32mm waste pipe, hope that answers the question. Works great by the way.

**Q: Can I use this to connect to a 40mm pipe?
Thank you**
A: NO, this one connects to 32mm pipe, (for bathroom/cloakroom sinks) you need:-

McAlpine 1-1/2" Bath Space Saver Bath Waste Trap Self Closing Valve WV-1

This one which fits 40mm pipe (as it says in its description

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.fi/products/140265341-mcalpine-1-1-4-self-closing-space-saver-basin-waste](https://www.desertcart.fi/products/140265341-mcalpine-1-1-4-self-closing-space-saver-basin-waste)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-31*