---
product_id: 276955252
title: "Hfx120 Anti-Siphon Toilet Tank Repair Kit"
brand: "danco"
price: "€ 50.76"
currency: EUR
in_stock: true
reviews_count: 6
url: https://www.desertcart.ie/products/276955252-hfx120-anti-siphon-toilet-tank-repair-kit
store_origin: IE
region: Ireland
---

# Harsh water ready Powerful cleaning jets Tool-free install Hfx120 Anti-Siphon Toilet Tank Repair Kit

**Brand:** danco
**Price:** € 50.76
**Availability:** ✅ In Stock

## Summary

> 🚽 Flush away your worries with DancoHfx120!

## Quick Answers

- **What is this?** Hfx120 Anti-Siphon Toilet Tank Repair Kit by danco
- **How much does it cost?** € 50.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/276955252-hfx120-anti-siphon-toilet-tank-repair-kit)

## Best For

- danco enthusiasts

## Why This Product

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

## Key Features

- • **Jet-Powered Cleaning:** Experience a pristine tank and flapper with powerful jets that eliminate buildup.
- • **Lightweight & Compact:** Weighing only 449g, this kit is easy to handle and store without hassle.
- • **Durable Flapper Design:** Engineered to withstand harsh water conditions for long-lasting performance.
- • **Effortless Installation:** Say goodbye to complicated setups—install in minutes without any tools!
- • **Universal Compatibility:** Designed to fit seamlessly with Kohler, American Standard, and Briggs toilets.

## Overview

The DancoHfx120 Anti-Siphon Toilet Tank Repair Kit is a lightweight, tool-free solution designed for easy installation and compatibility with major toilet brands. Featuring powerful cleaning jets and a durable flapper, this kit ensures optimal performance even in harsh water conditions.

## Description

DancoHfx120 Anti-Siphon Toilet Tank Repair Kit

## Features

- Installs easily without tools
- Designed to be compatible with Kohler, American Standard and Briggs
- Cleans the tank and flapper with powerful jets
- Flapper designed for harsh water conditions

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Danco Corp. |
| Part number | HFX120 |
| Item Weight | 449 g |
| Product Dimensions | 25.4 x 25.4 x 25.4 cm; 449 g |
| Item model number | HFX120 |
| Color | Multicolor |
| Style | 2-Inch Flush Valves |
| Material | Plastic |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Plastic
- **Brand:** Danco
- **Item dimensions L x W x H:** 10 x 10 x 10 inches
- **Exterior Finish:** Plastic (No Specific Finish)
- **Inlet Connection Size:** 2.5 Inches
- **Inlet Connection Type:** Female Iron Pipe
- **Outlet Connection Type:** Air Admittance Valve/Vacuum Breaker
- **Outlet Connection Size:** 2.5 Inches
- **Specification Met:** WaterSense certified
- **Global Trade Identification Number:** 00188670000039

## Images

![Hfx120 Anti-Siphon Toilet Tank Repair Kit - Image 1](https://m.media-amazon.com/images/I/61hfAvlLXML.jpg)

## Available Options

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

## Questions & Answers

**Q: Any one ever try one of these on a Toto?**
A: No

**Q: How do I get warranty coverage for this? Mine is having problems with stopping the water flow when the float valve is up.**
A: contact the company ---- don't expect a lot of help from them but they did send a replacement  - I had same problem (water wouldn't shut off) and another problem I had to call plumber on - he put in a decent product - I have an extra one of these in the garage now (oh the company didn't replace the flapper that was faulty) getting old but I am not going to go through the hassle I did for this one again - oh mine never worked and the flapper never held water - good idea for a product - bad product

**Q: does it fit one piece toto 1.6G toilet? If not, any recommendation?**
A: Hello, and thank you for contacting Danco! The Next by Danco model # HFX120 is designed for compatibility with Kohler, American Standard, and Briggs standard two piece toilets, and will not be compatible with your current toilet configuration. We suggest reaching out to Toto for their suggestion on replacement flappers and fill valves.

**Q: What size flapper is included with this kit? Is it a 2" or 3" flapper?**
A: Mine did not include one

## Customer Reviews

### ⭐ 1.0 out of 5 stars







  
  
    It is not compatible with fittings in UAE
  

*by A***. on Reviewed in the United Arab Emirates on 4 December 2021*

Water Inlet threaded is not compatible with standard fittings in UAE, so you can't connect to water supply.

### ⭐⭐⭐⭐⭐ 







  
  
    Quality product
  

*by D***A on Reviewed in the United States on 14 July 2024*

Arrived quickly and installed smoothly, fixed a running toilet. I found the instructions a bit confusing but the video in the Amazon listing was very helpful. It seems like it will last a long time.

### ⭐⭐⭐⭐⭐ 







  
  
    Get rid of your old float valve!!!
  

*by A***D on Reviewed in Canada on 11 December 2015*

Well made components and very easy to install. Very well engineered and extremely easy to adjust (without tools). The tank fill level can adjusted by turning a threaded linkage and the toilet bowl fill level can be adjusted by means of a quarter-throw lever-- very nice. No more grimy brass or plastic screws to see-saw adjust.It's quite evident that every part of this product was well thought out. Even the valve nut was engineered so that it could not be over tightened (a common mode of failure for leaks at the tank/valve union).Be sure, when installing the valve nut that the valve tower's seal is well seated into your tank's opening. If it's off, even by a little, you'll have a leak when the tank fills. A gentle "jiggle" (yes, that's the official plumbing term) while hand tightening the nut helps prevent possible leaks during installation. The instructions state, "1 - 3 audible clicks" until tight, however that would be fine if you toilet's tank is dimensionally perfect. Use your judgement as to how tight "hand tight" is so as to make sure it won't spring a leak.Fill times are dramatically faster than what I previously in my tanks (in fairness, they were 15 year old float valves). On a very old Cranada 6 LPF of almost 3 minutes this valve pulls a 44 second flush-to-fill time.I'm not quite sure why I didn't replace my toilet fill valves with this type of system before now. Thumbs up!UPDATE: 11 months on and it's doing great. The only problem is that the flapper chain fell off once-- easily remedied by a cable tie.UPDATE: +7 years on and it has finally shown signs of failure. The main valve body has developed a hairline crack when the valve is open/filling the tank. I will likely replace it which the same model or a FM brand but this exact model has skyrocketed in price here. That said, I am happy with the performance over +7 years considering the original price paid.

## Frequently Bought Together

- Danco HFX120 Anti-Siphon Toilet Tank Repair Kit
- Fluidmaster 502P21 PerforMAX Universal Water-Saving Long Life Toilet Flapper for 2-Inch Flush Valves, Adjustable Solid Frame Design, Easy Install, Red, 1 pack

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-05*