---
product_id: 92537121
title: "57882 F3 System Cleaner 1 Pint"
brand: "fernox"
price: "46928 Ft"
currency: HUF
in_stock: true
reviews_count: 5
category: "Fernox"
url: https://www.desertcart.hu/products/92537121-57882-f3-system-cleaner-1-pint
store_origin: HU
region: Hungary
---

# Works effectively in 1 week Restores crystal-clear system water Powerful sludge removal 57882 F3 System Cleaner 1 Pint

**Brand:** fernox
**Price:** 46928 Ft
**Availability:** ✅ In Stock

## Summary

> 💧 Clean smarter, not harder — your boiler’s new best friend!

## Quick Answers

- **What is this?** 57882 F3 System Cleaner 1 Pint by fernox
- **How much does it cost?** 46928 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/92537121-57882-f3-system-cleaner-1-pint)

## Best For

- fernox enthusiasts

## Why This Product

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

## Key Features

- • **Deep System Detox:** Eliminates sludge, flux & debris for peak efficiency
- • **Compact & Convenient:** 1 pint size fits easily into any maintenance kit
- • **Boost Boiler Longevity:** Protects high-efficiency boilers from buildup
- • **Effortless Application:** Simply pour and run your boiler for a week
- • **Trusted Industry Leader:** From Fernox, a top name in water treatment

## Overview

Fernox 57882 F3 System Cleaner is a professional-grade chemical solution designed to remove sludge, flux, and debris from both new and existing central heating systems. Easy to use with a one-week treatment cycle, it restores water clarity and improves boiler efficiency, making it a must-have for maintaining high-performance heating systems.

## Description

Fernox is a leading manufacturer of water treatment chemical products, central heating system filters, plumbing consumables and diagnostic testing services.

Review: Worked to restore a rusty system after unknowledgeable repair - When I first bought my home the pipes knocked like crazy. I was worried that it would damage something (pipes or solder maybe the framing of the house etc) so I did my thorough research and boldly bled the boiler. I didn't realize there's anti corrosion chemicals mixed into the liquid in the pipes. About 2 years later, my whole boiler was starting to rust. From what I could see at least. It seemed drastic and sudden, every pipe going to and from the boiler was suddenly rusted. I did more research and found out, I needed to clean the system with this, then drain it and refill it with the f1. (Why is it backwards that's so confusing. Is it because you fill f1 first and then f3 is if you're a homeowner who bled the boiler). I learned more about the boiler than any other appliance in the house. I understand the boiler after all this. I turned it off and let it cool until the big cast iron pipe at the bottom of the boiler was touchable. Supposedly that's the temperature the boiler would be? I don't know, I turned turned off all the zones but the first one. Luckily I found the manual for my boiler and was able to follow their filling instructions. That made it much easier since they mentioned my boiler automatically limits filling to 12 psi. I bought a small hand pump, I attached hoses to it with hose clamps and screwed it onto the first zone. Before bleeding I opened the zones outlet with the siphon going into the bottle, I just quickly forced it in, closed it and moved on to the next zone. After all the zones were done. I went back to the first to just open it for half a second to break any bubble or seal . It seems to really clean the system. After draining and filling the f1 it made the pipes look pretty much like the day we moved in. I'm surprised how much it affected the rust damage. Very cool stuff!
Review: Works - I suppose it works. I drained the boiler until as clear as possible then I poured this in and left it for a week with the boiler heat on. After which I drained again until clear. Filled the boiler to spec and added the F3… works… water in the level shows the gunk settles leaving the to crystal clear

## Features

- Removes sludge, flux and debris from new and existing systems
- Package Weight: 0.625 kilograms
- Country of Origin : China
- Package Dimensions: 18.2 H x 4.6 L x 8.8 W (centimetres)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B07L4QXF84 |
| Best Sellers Rank | #154,234 in Automotive ( See Top 100 in Automotive ) #618 in Cleaners #6,634 in HVAC |
| Customer Reviews | 4.8 4.8 out of 5 stars (11) |
| Date First Available  | December 5, 2018 |
| Item model number  | 57882 |
| Manufacturer  | MONDALE & ASSOCIATES |
| Package Dimensions  | 7.48 x 4.53 x 2.01 inches; 1.41 Pounds |

## Product Details

- **Brand:** Fernox
- **Item Form:** Liquid
- **Item Volume:** 1 Pints
- **Material Feature:** Scented
- **Scent:** Citrus

## Images

![57882 F3 System Cleaner 1 Pint - Image 1](https://m.media-amazon.com/images/I/51J5RL51DDL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked to restore a rusty system after unknowledgeable repair
*by A***H on February 10, 2026*

When I first bought my home the pipes knocked like crazy. I was worried that it would damage something (pipes or solder maybe the framing of the house etc) so I did my thorough research and boldly bled the boiler. I didn't realize there's anti corrosion chemicals mixed into the liquid in the pipes. About 2 years later, my whole boiler was starting to rust. From what I could see at least. It seemed drastic and sudden, every pipe going to and from the boiler was suddenly rusted. I did more research and found out, I needed to clean the system with this, then drain it and refill it with the f1. (Why is it backwards that's so confusing. Is it because you fill f1 first and then f3 is if you're a homeowner who bled the boiler). I learned more about the boiler than any other appliance in the house. I understand the boiler after all this. I turned it off and let it cool until the big cast iron pipe at the bottom of the boiler was touchable. Supposedly that's the temperature the boiler would be? I don't know, I turned turned off all the zones but the first one. Luckily I found the manual for my boiler and was able to follow their filling instructions. That made it much easier since they mentioned my boiler automatically limits filling to 12 psi. I bought a small hand pump, I attached hoses to it with hose clamps and screwed it onto the first zone. Before bleeding I opened the zones outlet with the siphon going into the bottle, I just quickly forced it in, closed it and moved on to the next zone. After all the zones were done. I went back to the first to just open it for half a second to break any bubble or seal . It seems to really clean the system. After draining and filling the f1 it made the pipes look pretty much like the day we moved in. I'm surprised how much it affected the rust damage. Very cool stuff!

### ⭐⭐⭐⭐⭐ Works
*by A***R on December 12, 2024*

I suppose it works. I drained the boiler until as clear as possible then I poured this in and left it for a week with the boiler heat on. After which I drained again until clear. Filled the boiler to spec and added the F3… works… water in the level shows the gunk settles leaving the to crystal clear

### ⭐⭐⭐⭐⭐ Easy boiler cleaning
*by C***R on April 3, 2024*

This cleaner was recommended to me for the high efficiency boilers we have. It was easy to use and appeared to do a good job on boiler and boiler/water water heater.

## Frequently Bought Together

- Fernox 57882 F3 System Cleaner 1 Pint
- Fernox 56599 F1 500 ml Central Heating Protector
- Fernox 62436 Central Heating Protector F1 Express - 400ML

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-06*