---
product_id: 140265341
title: "McAlpine WHB-1 Wash Hand Basin and Bath Space Saver with Self-Closing Waste Valve."
brand: "mcalpine"
price: "B/.109"
currency: PAB
in_stock: true
reviews_count: 10
category: "Mcalpine"
url: https://www.desertcart.com.pa/products/140265341-mcalpine-whb-1-wash-hand-basin-and-bath-space-saver
store_origin: PA
region: Panama
---

# Self-closing valve reduces water waste Compact 58x19x19 cm space-saving design Flexible plumbing with air intake valve McAlpine WHB-1 Wash Hand Basin and Bath Space Saver with Self-Closing Waste Valve.

**Brand:** mcalpine
**Price:** B/.109
**Availability:** ✅ In Stock

## Summary

> 🚿 Save space, cut waste, and breathe easy with McAlpine’s smart basin trap!

## Quick Answers

- **What is this?** McAlpine WHB-1 Wash Hand Basin and Bath Space Saver with Self-Closing Waste Valve. by mcalpine
- **How much does it cost?** B/.109 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/140265341-mcalpine-whb-1-wash-hand-basin-and-bath-space-saver)

## 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

- • **Durable, hygienic build:** Reliable, long-lasting solution that keeps your space fresh and functional.
- • **Odor-free membrane seal:** Innovative waterless trap prevents foul smells without maintenance hassle.
- • **Eco-smart self-closing valve:** Automatically seals to minimize water waste and boost efficiency.
- • **Flexible plumbing compatibility:** Air intake valve adapts to negative pressure for versatile installation.
- • **Space-maximizing compact design:** Perfect fit for small bathrooms and cloakrooms, saving precious space.

## Overview

The McAlpine WHB-1 is a compact wash hand basin space saver featuring a self-closing waste valve that reduces water waste. Its waterless membrane seal prevents odors, while the air intake valve allows flexible plumbing installation. Ideal for small bathrooms and cloakrooms, it combines durability with hygienic design in a sleek, space-efficient package.

## Description

Compact anti-odor trap with self-closing valve and horizontal outlet, offering flexible plumbing design and hygienic, durable solution for cloakrooms and basins.

Review: Basin drain trap - Great space saving trap does not let water or smells back into basin highly recommend.
Review: Space saver - Still working well after several years. Allowed me to have a shallow sink directly above the washing machine.

## Features

- McAlpine WHB-1 wash hand basin space saver with integrated self-closing waste valve.
- Self-closing waste valve seals when not in use to reduce water waste.
- Valve design allows air intake during negative pressure, offering greater flexibility in plumbing design.
- Compact space-saver design ideal for small bathrooms and cloakrooms.
- Waterless trap design with membrane seal prevents foul odour and sewer gas.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07N12KLRV |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 160,113 in DIY & Tools ( See Top 100 in DIY & Tools ) 379 in Traps |
| Colour | White |
| Customer Reviews | 4.5 4.5 out of 5 stars (351) |
| Date First Available | 22 Jan. 2019 |
| Guaranteed software updates until | unknown |
| Included Components | 1 x WHB-1 |
| Item Package Quantity | 1 |
| Item Weight | 110 g |
| Item model number | WHB-1 |
| Manufacturer | Mcalpine |
| Part Number | WHB-1 |
| Product Dimensions | 58 x 190 x 190 cm; 110 g |
| Size | 1 & 1/4" |

## Images

![McAlpine WHB-1 Wash Hand Basin and Bath Space Saver with Self-Closing Waste Valve. - Image 1](https://m.media-amazon.com/images/I/51U8C6F9mDL.jpg)
![McAlpine WHB-1 Wash Hand Basin and Bath Space Saver with Self-Closing Waste Valve. - Image 2](https://m.media-amazon.com/images/I/61jao7iv6WL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: When should I use an anti-syphon or resealing trap?**
A: Generally, the waste pipe or discharge pipe from an appliance is beyond the limitations of an unvented waste pipe. Usually more critical on the basin and bidet Wastes.

**Q: What is the difference between an anti-syphon trap and a re-sealing trap?**
A: A re-sealing is designed to allow air to pass through the water seal under negative pressure but will retain sufficient water. An anti siphon trap has a small mechanical valve which opens under negative pressure.

**Q: Why does water not run away in my shower?**
A: If it is not due to the obvious reason of a blockage caused by a buildup of debris, the problem could be due to back pressure within the discharge pipe.

**Q: What is the maximum thickness of bath that your bath fillers can be installed on?**
A: The maximum thickness of the bath is 20mm and unfortunately, we do not make an extension ferrule to extend that length.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Basin drain trap
*by W***H on 20 May 2026*

Great space saving trap does not let water or smells back into basin highly recommend.

### ⭐⭐⭐⭐⭐ Space saver
*by S***T on 17 April 2026*

Still working well after several years. Allowed me to have a shallow sink directly above the washing machine.

### ⭐⭐⭐⭐ No smell
*by A***R on 28 June 2020*

Stops smells but not the noise of the echos from the soil pipe, easy install good product better of with a proper trap to stop noise also

## Frequently Bought Together

- 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
- Wirquin 39007001 Overflow set for washbasins, flexible
- Wasserrhythm Pop up Basin Waste Slotted Click Clack Plug with Overflow Pop-up Bathroom Sink Waste Chrome 304 stainless steel

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**Shop now:** [https://www.desertcart.com.pa/products/140265341-mcalpine-whb-1-wash-hand-basin-and-bath-space-saver](https://www.desertcart.com.pa/products/140265341-mcalpine-whb-1-wash-hand-basin-and-bath-space-saver)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-09-21*