---
product_id: 53426266
title: "W.C. Fill Valve Bottom Entry"
brand: "fluidmaster"
price: "€ 32.35"
currency: EUR
in_stock: true
category: "Fluidmaster"
url: https://www.desertcart.be/products/53426266-w-c-fill-valve-bottom-entry
store_origin: BE
region: Belgium
---

# Durable plastic build, WRAS certified Precision 0.5-inch compression inlet/outlet Complete kit with washer, spigot nut & restrictor W.C. Fill Valve Bottom Entry

**Brand:** fluidmaster
**Price:** € 32.35
**Availability:** ✅ In Stock

## Summary

> 🚽 Upgrade your flush game with precision and ease!

## Quick Answers

- **What is this?** W.C. Fill Valve Bottom Entry by fluidmaster
- **How much does it cost?** € 32.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/53426266-w-c-fill-valve-bottom-entry)

## Best For

- fluidmaster enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Durable Build:** Plastic exterior designed to resist corrosion and last longer
- • **WRAS Certified Reliability:** Meets stringent UK water regulations for peace of mind
- • **Seamless Bottom Entry Design:** Optimized for easy installation and maintenance in tight spaces
- • **All-Inclusive Installation Kit:** Comes with washer, spigot nut, restrictor, and clear instructions for hassle-free setup
- • **Universal 0.5-Inch Compression Fittings:** Ensures compatibility with most standard plumbing setups

## Overview

The W.C. Fill Valve Bottom Entry by Fluidmaster is a WRAS-certified, plastic globe valve designed for efficient toilet fill control. Featuring 0.5-inch compression inlet and outlet connections, it includes all necessary components for quick installation. Its compact design fits tight spaces, making it a reliable choice for modern plumbing needs.

## Description

W.C. Fill Valve Bottom Entry : desertcart.co.uk: DIY & Tools

## Features

- W.C. Fill Valve Bottom Entry

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0051TQOTG |
| Best Sellers Rank | 10,285 in DIY & Tools ( See Top 100 in DIY & Tools ) 6 in Tap Valves |
| Brand | Fluidmaster |
| Connector Type | Compression |
| Country of Origin | Turkey |
| Customer Reviews | 4.0 4.0 out of 5 stars (884) |
| Exterior Finish | Plastic |
| Included Components | Fill Valve, washer, spigot nut, restrictor and instructions |
| Inlet Connection Size | 0.5 Inches |
| Inlet Connection Type | Compression |
| Item Dimensions | 17 x 5 x 39 centimetres |
| Item Type Name | W.C. Fill Valve Bottom Entry |
| Manufacturer | Generic |
| Material | Plastic |
| Model Number | B661AT |
| Number of Items | 1 |
| Number of Packs | 2 |
| Number of Pieces | 1 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.5 Inches |
| Outlet Connection Type | FNPT |
| Part Number | B661AT |
| Set Name | Old Variant B661AT |
| Size | 2" x 6.7" x 15.4" |
| Specification Met | WRAS |
| Thread Size | 1/2 pollici |
| Thread Type | NPT |
| UPC | 791429004259 |
| Unit Count | 1.0 count |
| Valve Type | Globe Valve |

## Product Details

- **Brand:** Fluidmaster
- **Exterior finish:** Plastic
- **Inlet connection size:** 0.5 Inches
- **Inlet connection type:** Compression
- **Item dimensions L x W x H:** 17 x 5 x 39 centimetres
- **Material:** Plastic
- **Number of ports:** 2
- **Outlet connection size:** 0.5 Inches
- **Outlet connection type:** FNPT
- **Specification met:** WRAS

## Images

![W.C. Fill Valve Bottom Entry - Image 1](https://m.media-amazon.com/images/I/51d5Ze66ECL.jpg)

## Available Options

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

## Questions & Answers

**Q: What diameter is the inlet pipe ?**
A: I honestly can't remember but I have non mains water (i.e. a private well)  with VERY low water pressure so had a big problem finding a suitable item to cope with low water pressure. This model was the only one that worked and it has been fine for several years now. I imagine the inlet was either three quarters bsp or 22mm pipework. Posibly 15mm - whatever diameter pipe enters the cistern is the size to work from. Probably, on refelction 15mm but if it is a BSP (British Standard PIpethread) then that will determine the fitting. Suspect it will be a tank connector of some sort with BSP on one side and either 22mm or 15mm on the other.

HM

**Q: Why does it hum after flushing**
A: Good question.  We had our plumber replace both this and the flush valve. Our cistern still 'chugs' like an engine usually after the short flush, long flush usually ok. We've had the plumber back 3 x times so far so we were wondering if our recently replaced flush valve is defective as we've noticed water trickling into the pan when it gets noisy?  Getting to the point of replacing the whole toilet/cistern, its driving us mad!

**Q: Is this suitable for mains pressure fill.**
A: We use it for mains pressure filling of our cistern.  As previous comment it does seem very flimsy, but has worked ok so far!

**Q: I require the model without the plastic hoop at the water entry point, can you help**
A: Sorry - I'm not really sure about this.  Do you mean the white, circular lip towards the bottom of the water entry tube?  If that's what you mean, it acts to seal the tube and the bottom of the cistern so is pretty crucial in order to avoid leakage.  Can you give a bit more detail of what you are aiming to do, please?

## Frequently Bought Together

- Torbeck B661AT W.C. Fill Valve Bottom Entry, one Colour
- TORBECK Spare Diaphragm Washer
- Merriway BH03350 Cistern WC Diaphragm Inlet Valve Washer to Fit Torbeck Valves,Silver

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-09-13*