---
product_id: 274261400
title: "56599 F1 500ml Protector"
brand: "fernox"
price: "12060 kr"
currency: ISK
in_stock: true
category: "Fernox"
url: https://www.desertcart.is/products/274261400-56599-f1-500ml-protector
store_origin: IS
region: Iceland
---

# Prevents limescale buildup Compatible with all metals Long-term corrosion defense 56599 F1 500ml Protector

**Brand:** fernox
**Price:** 12060 kr
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your heating flawless—because your home deserves the best!

## Quick Answers

- **What is this?** 56599 F1 500ml Protector by fernox
- **How much does it cost?** 12060 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/274261400-56599-f1-500ml-protector)

## 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

- • **Limescale Blocker:** Stops scale formation to maintain peak heating efficiency
- • **Trusted Longevity:** Proven long-term protection for your central heating system
- • **Almond-Scented Formula:** Keeps your system fresh without harsh chemical odors
- • **Ultimate System Shield:** Protects ferrous metals, copper, and aluminum from corrosion
- • **Universal Compatibility:** Works seamlessly with all boiler, radiator, and pipe materials

## Overview

Fernox 56599 F1 Protector is a 500ml treatment designed to safeguard domestic central heating systems from corrosion and limescale. Compatible with all common metals and materials, it ensures long-lasting efficiency and system longevity while maintaining a fresh almond scent. Ideal for boilers, radiators, and pipework, this acid-free formula is a must-have for proactive home maintenance.

## Description

Product Description Fernox Protector F1 gives long-term protection of domestic central heating systems against internal corrosion and limescale formation. It prevents corrosion of all metals found in these systems, i.e. ferrous metals, copper and copper alloys and aluminium. It is suitable for all types of boiler, radiators and pipe work systems. Fernox F1 Protector is compatible with all metals and materials commonly used in central heating systems. Note: Date mentioned on the item is production date not expiry date Set Contains: 1 x F1 500ml Protector

## Features

- Item Category: Tools
- Item Trademark: Fernox
- manufacturer: Fernox

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003HQ97E4 |
| Batteries required | No |
| Best Sellers Rank | #170,443 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #163 in Central Heating Systems & Accessories |
| Customer Reviews | 5.0 5.0 out of 5 stars (1) |
| Date First Available | 13 August 2012 |
| Included components | 1 x Fernox 56599 F1 500 ml Protector |
| Is mould resistant | Acid Free |
| Item Weight | 1.1 Pounds |
| Item model number | 56599 |
| Item volume | 500 Milliliters |
| Number of pieces | 1 |
| Product Dimensions | 18.49 x 8.99 x 5.51 cm; 498.95 g |
| Scent | Almond |
| Specific uses | Indoor use only |

## Product Details

- **Brand:** Fernox
- **Item form:** Liquid
- **Material features:** Natural
- **Scent:** Almond
- **Specific uses for product:** Indoor use only

## Images

![56599 F1 500ml Protector - Image 1](https://m.media-amazon.com/images/I/71vgSqRV2bL.jpg)

## Questions & Answers

**Q: How do i add this f1 to steam boiler? can i add it through an air vent hold on a radiator? thanks**
A: My boiler isn’t steam, it’s hot water. But the directions that I was given was to remove/drain all of the current water in the system completely after the boiler has cooled off. Then add the cleaner. Now what I did was to add a shark bite  “T”and poured it into the system as I didn’t have another other place to put it in.  Then I removed the “T” and replaced it with a coupler.  But on a steam system I would think that you could add it to your radiator top vent and put it in then refill the system.   After it’s refilled your going to run it if a few days. I’m doing mine a little longer, like 10 days. So during that time the chemical is going to move around and clean the system.  Just make sure you turn off the boiler before you start doing any work on it.  I hope that this helps

**Q: How many gallons will this treat?**
A: My bottle says that it will treat up to 34 US gallons.

## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.is/products/274261400-56599-f1-500ml-protector](https://www.desertcart.is/products/274261400-56599-f1-500ml-protector)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-10*