---
product_id: 1303660
title: "Vacum Breaker Kit A/S Ff"
brand: "mueller b & k"
price: "€ 22.09"
currency: EUR
in_stock: true
reviews_count: 8
category: "Mueller B & K"
url: https://www.desertcart.pt/products/1303660-vacum-breaker-kit-a-s-ff
store_origin: PT
region: Portugal
---

# Anti-siphon leak prevention NPT thread compatibility Precision brass build Vacum Breaker Kit A/S Ff

**Brand:** mueller b & k
**Price:** € 22.09
**Availability:** ✅ In Stock

## Summary

> 💧 Upgrade your faucet’s defense with brass precision—don’t let leaks steal your flow!

## Quick Answers

- **What is this?** Vacum Breaker Kit A/S Ff by mueller b & k
- **How much does it cost?** € 22.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/1303660-vacum-breaker-kit-a-s-ff)

## Best For

- mueller b & k enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** 1x2x1 inch, 9g kit fits discreetly and installs without hassle.
- • **Easy DIY Installation:** Hand-tighten design prevents overtightening and plastic damage—no plumber needed.
- • **Durable Brass Construction:** Engineered for long-lasting corrosion resistance and premium reliability.
- • **Universal Fit for Mueller Models:** Seamlessly replaces vacuum breakers on models #104-823HC to #104-829HC and #104-843HC to #104-849HC.
- • **Leak-Proof Anti-Siphon Technology:** Prevents backflow and water contamination, ensuring safe and clean water supply.

## Overview

The Mueller B & K Brass Vacuum Breaker Repair Kit (Model 888-576HC) is a high-quality, corrosion-resistant replacement part designed to restore anti-siphon functionality and prevent leaks in frost-free sillcocks. Compatible with a range of Mueller faucet models, this compact kit features NPT reducer male threads for a secure fit and is engineered for easy hand-tight installation, saving you costly faucet replacements and plumber visits.

## Description

Vacum Breaker Kit A/S Ff

Review: Wow - Life is not easy and this part if not correct can waste some life. - First wanted to thank Elaine K for the 14-Jul-2015 Review. This reasonably assured me I had the correct part (Vacum Breaker Kit A/S Ff byMueller B & K). Hopefully more details and pictures will help others to not have the same trouble. This also saved me from replacing the entire faucet. I bought my Mueller silcock from home depot probably about 15 years ago. Mine is a Mueller you can see the big sideways "M" with an upside down triangle above it in the picture. The front view (red dial) may be the model number? I found that for my faucet the ProLine 888-576HC part was correct and functioned perfectly. When you remove the old part you will see that the threads on the plastic piece do not go all the way to the bottom. There is a flat, narrower, piece of the tube that has no threads. The threads may be a good way to identify the correct part. This part, fit in my faucet and came in the bag labeled 888-576HC. The part bag labeled 888-183 did not fit. This part has threads all the way down to the bottom of the tube that screws into the faucet. The threads were slightly larger and absolutely would not screw in to my faucet. I tried for about 45 minutes before giving up after realizing I was not cross threading the piece. The person from home depot handed me this 888-183 part very quickly when I stated what I needed. This made me feel that it was the correct part. I also figured the part that home depot was selling would be the correct part because I bought it there. Wrong! Afterwards, I saw online, that they do not stock the Mueller part. My symptoms - I noticed over the last five or so years that I was getting water weeping out of the top cap on the faucet (silcock). I ignored it because it was not too bad and it only leaked when I was using the faucet. This year however it was a slow but steady stream of water escaping. I attached a picture of the old plastic piece that mounts in the faucet. The black washer faces up. You can see in my picture that the rubber is hard and cracked. This is what was most likely causing the leak and tightening the pieces will not fix this. This piece is the same in both parts I tried. You may be able to just replace the rubber washer or this part and fix your leak. There were others that posted they bought the wrong part but used only this plastic and black washer piece to correct the issue. Other advice do not use tools to tighten this piece or try to fix the leak by tightening. Try just hand tightening when installing or lightly tighten if you do not have a strong grip. The plastic will snap easily. I used some teflon tape around the threads that mate to the faucet, like others have suggested. I did not notice any from the factory and it may not be needed.
Review: Don't replace that faucet, just replace the vacuum breaker, its easy!!! - Great value for the money. Be sure to measure yours before you buy because there are several sizes available and it is easy to get the wrong one like I did originally. Evidently my faucet was the less common version so the first one I bought was the wrong one, but after I realized they were different sizes, I was able to purchase this one and it worked perfectly!

## Features

- Vacuum Breaker Repair kit for anti-siphon and frost free sillcock
- Fits Models # 104-823HC thru 104-829HC and 104-843HC thru 104-849HC Replacement parts for Catalog id: 42928654, 40696294, 42704174, 42928654, 40696316, 42928652, 42901663, 42928651 42979706
- Carded
- Material: Brass

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00GRAAV4W |
| Best Sellers Rank | #41,242 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,309 in Pipe Fittings |
| Brand | Mueller B & K |
| Brand Name | Mueller B & K |
| Color | Brass |
| Connector Type | Cap |
| Customer Reviews | 4.3 out of 5 stars 386 Reviews |
| Exterior Finish | Brass |
| Global Trade Identification Number | 00032888149915 |
| Included Components | B&K - 888-576HC |
| Item Dimensions | 1 x 2 x 1 inches |
| Item Type Name | B&K - 888-576HC |
| Item Weight | 9.07 g |
| Item dimensions L x W x H | 1 x 2 x 1 inches |
| Manufacturer | Mueller B & K |
| Manufacturer Part Number | B&K - 888-576HC |
| Manufacturer Warranty Description | Warranty |
| Material | Brass |
| Material Type | Brass |
| Model Number | B&K - 888-576HC |
| Number of Pieces | 1 |
| Set Name | Brass Vacuum Breaker Repair Kit (1 Pack) |
| Size | Pack of 1 |
| Thread Size | Reducer Male |
| Thread Type | NPT |
| UPC | 032888149915 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Mueller B & K
- **Color:** Brass
- **Connector Type:** Cap
- **Exterior Finish:** Brass
- **Item Weight:** 0.01 Ounces
- **Item dimensions L x W x H:** 1 x 2 x 1 inches
- **Material:** Brass
- **Size:** Pack of 1
- **Thread Size:** Reducer Male
- **Thread Type:** NPT

## Images

![Vacum Breaker Kit A/S Ff - Image 1](https://m.media-amazon.com/images/I/21ohXRzQ7dL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Wow - Life is not easy and this part if not correct can waste some life.
*by M***Y on July 27, 2025*

First wanted to thank Elaine K for the 14-Jul-2015 Review. This reasonably assured me I had the correct part (Vacum Breaker Kit A/S Ff byMueller B & K). Hopefully more details and pictures will help others to not have the same trouble. This also saved me from replacing the entire faucet. I bought my Mueller silcock from home depot probably about 15 years ago. Mine is a Mueller you can see the big sideways "M" with an upside down triangle above it in the picture. The front view (red dial) may be the model number? I found that for my faucet the ProLine 888-576HC part was correct and functioned perfectly. When you remove the old part you will see that the threads on the plastic piece do not go all the way to the bottom. There is a flat, narrower, piece of the tube that has no threads. The threads may be a good way to identify the correct part. This part, fit in my faucet and came in the bag labeled 888-576HC. The part bag labeled 888-183 did not fit. This part has threads all the way down to the bottom of the tube that screws into the faucet. The threads were slightly larger and absolutely would not screw in to my faucet. I tried for about 45 minutes before giving up after realizing I was not cross threading the piece. The person from home depot handed me this 888-183 part very quickly when I stated what I needed. This made me feel that it was the correct part. I also figured the part that home depot was selling would be the correct part because I bought it there. Wrong! Afterwards, I saw online, that they do not stock the Mueller part. My symptoms - I noticed over the last five or so years that I was getting water weeping out of the top cap on the faucet (silcock). I ignored it because it was not too bad and it only leaked when I was using the faucet. This year however it was a slow but steady stream of water escaping. I attached a picture of the old plastic piece that mounts in the faucet. The black washer faces up. You can see in my picture that the rubber is hard and cracked. This is what was most likely causing the leak and tightening the pieces will not fix this. This piece is the same in both parts I tried. You may be able to just replace the rubber washer or this part and fix your leak. There were others that posted they bought the wrong part but used only this plastic and black washer piece to correct the issue. Other advice do not use tools to tighten this piece or try to fix the leak by tightening. Try just hand tightening when installing or lightly tighten if you do not have a strong grip. The plastic will snap easily. I used some teflon tape around the threads that mate to the faucet, like others have suggested. I did not notice any from the factory and it may not be needed.

### ⭐⭐⭐⭐⭐ Don't replace that faucet, just replace the vacuum breaker, its easy!!!
*by J***N on September 8, 2025*

Great value for the money. Be sure to measure yours before you buy because there are several sizes available and it is easy to get the wrong one like I did originally. Evidently my faucet was the less common version so the first one I bought was the wrong one, but after I realized they were different sizes, I was able to purchase this one and it worked perfectly!

### ⭐⭐⭐⭐ Wrong size but worked anyway
*by R***L on May 28, 2023*

Ordering these parts is hit or miss regarding the size. The outer body didn't fit (threaded part too small) but the inner part with the rubber gasket looked like an identical match so I swapped it in and... Works perfectly. At least for now.

## Frequently Bought Together

- Vacum Breaker Kit A/S Ff
- Eastman Vacuum Breaker Repair Kit, 45417
- Homewerks VACVBKX1B Vacuum Breaker Replacement Kit for Traditional Anti-Siphon Frost-Free Sillcock Valves

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-07-03*