---
product_id: 47935916
title: "B and K Industries 109-503RP Anti-Sweat Toilet Tank Valve"
brand: "mueller"
price: "67232CFA"
currency: XOF
in_stock: true
reviews_count: 3
url: https://www.desertcart.sn/products/47935916-b-and-k-industries-109-503rp-anti-sweat-toilet-tank
store_origin: SN
region: Senegal
---

# Eliminates condensation & moisture Built-in check valves prevent cross-connection Adjustable water temperature control B and K Industries 109-503RP Anti-Sweat Toilet Tank Valve

**Brand:** mueller
**Price:** 67232CFA
**Availability:** ✅ In Stock

## Summary

> 🚽 Keep it dry, sleek, and smart — the ultimate anti-sweat upgrade!

## Quick Answers

- **What is this?** B and K Industries 109-503RP Anti-Sweat Toilet Tank Valve by mueller
- **How much does it cost?** 67232CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/47935916-b-and-k-industries-109-503rp-anti-sweat-toilet-tank)

## Best For

- mueller enthusiasts

## Why This Product

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

## Key Features

- • **Brass Durability:** Crafted from premium brass for long-lasting, corrosion-resistant performance.
- • **Compact & Efficient:** Sleek 5/8'' OD compression design fits seamlessly without bulky tank liners.
- • **Smart Water Control:** Built-in check valves ensure no hot-cold water mix, protecting your plumbing system.
- • **Say Goodbye to Drips:** Permanently stops toilet tank condensation and floor moisture for a pristine bathroom.
- • **Seasonal Flexibility:** Easily shut off the hot water inlet during off-season to save energy and extend valve life.

## Overview

The B and K Industries 109-503RP Anti-Sweat Toilet Tank Valve is a durable brass valve designed to eliminate condensation and prevent dripping from toilet tanks. Featuring built-in check valves to avoid hot and cold water cross-connection, it offers adjustable water temperature and a hot water shut-off option for off-season use. This compact, efficient solution outperforms traditional tank liners by providing a permanent moisture control fix.

## Description

B and K Industries 109-503RP Anti-Sweat Toilet Tank Valve

## Features

- Eliminates condensation, prevents dripping of toilet tanks, ends moisture on floors
- Built-in check valves prevent hot and cold water cross connection
- Water temperature is adjustable
- Hot water inlet can be shut-off during off-season
- Superior to tank liners, provides a permanent solution

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Mueller Industries |
| Part Number | 109-503RP |
| Product Dimensions | 13.97 x 9.22 x 3.81 cm; 349 g |
| Item model number | 109-503RP |
| Size | 5/8'' OD Compression |
| Colour | Tan |
| Material | Brass |
| Power Source | No |
| Item Package Quantity | 1 |
| Certification | No |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 349 g |

## Product Details

- **Material:** Brass
- **Brand:** Mueller
- **Item dimensions L x W x H:** 14 x 9.2 x 3.8 centimetres
- **Exterior finish:** Brass
- **Inlet connection size:** 0.5 inches
- **Inlet connection type:** Half Tube Male, Butt Welding, Compression
- **Outlet connection type:** Sweat
- **Number of ports:** 2
- **Specification met:** No
- **Valve type:** Toilet Tank Valve

## Images

![B and K Industries 109-503RP Anti-Sweat Toilet Tank Valve - Image 1](https://m.media-amazon.com/images/I/81nezDyBjLL.jpg)

## Questions & Answers

**Q: what size pipe  can it be used on?**
A: I used 1/2" pipe fittings which made for an easy installation.  The photo shows it set for 1/2" copper tubing so I don't know if they changed it or if it can be used either way.  I think it can but I would contact Mueller to be sure.

**Q: Could cross connection happen with this valve?**
A: Not sure what you mean by "cross connection". This type of valve simply connects your cold water and hot water pipes together before it supplies your toilet tank. You can adjust the temperature to stop condensation on your toilet. The water in the tank does not need to be too warm. Adjust it as cool as it can be to stop the condensation and save on your hot water bill. These valves work great.

**Q: how do you hook up to 1/2" copper pipes?**
A: You can use the compression fittings provided with the valve or you can install  1/2 "copper female adapters to the valve and solder the pipe to them.

**Q: does the big screw on both hot and cold sides increase or decrease total flow?**
A: I'm no expert but the total flow is going to be determined by the outlet side.  Unless you turn both screws way down, it should only adjust the hot to cold water ratio.  Just my opinion though.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Stops toilet tank sweating condensation
*by M***T on 19 April 2024*

Easy to install if you are handy with tools.

### ⭐⭐⭐⭐⭐ Works well
*by M***E on 5 May 2014*

Great product, works well. Did come with US sized bolts which we had to change for UK size as slightly different but other than that it does the job!

### ⭐⭐⭐⭐⭐ Condensation
*by B***O on 20 February 2016*

works a treat any body with a downstairs toilet would benefit if hot water pipes were nearby

## Frequently Bought Together

- Mueller Industries B and K Industries 109-503RP Anti-Sweat Toilet Tank Valve
- SharkBite 1/2 x 1/2 Inch FNPT Adapter, Pack of 4, Push To Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U072LFA4
- SharkBite 1/2 Inch Tee, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U362LFA

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sn/products/47935916-b-and-k-industries-109-503rp-anti-sweat-toilet-tank](https://www.desertcart.sn/products/47935916-b-and-k-industries-109-503rp-anti-sweat-toilet-tank)

---

*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-27*