Trade Pack — 3 × Fernox F1 Protector 500 ml (56599)
Corrosion & Scale Inhibitor Central Heating Trade Multipack
Stock-friendly multipack of the trusted Fernox F1 Protector to help protect wet central heating systems against corrosion and limescale, reduce venting and cold spots, and support long-term system efficiency.
Key benefits
- Helps prevent corrosion and scale build-up
- Can reduce frequent venting and radiator cold spots
- Helps prevent pump sticking
- Designed to maintain system efficiency when used after proper cleaning
- Use with Fernox F3/F8 cleaner before dosing for best results
Pack contents
- 3 × Fernox F1 Protector — 500 ml bottles
- Brand: Fernox | Code: 56599 | FTB: FTB13750
Application notes
- For closed-loop wet central heating systems
- Dose after cleaning and thorough flush; circulate and check inhibitor levels during servicing
- Follow system manufacturer guidance and Fernox instructions for dosing volumes
Technical summary
| Product | Fernox F1 Protector (central heating inhibitor) |
| Pack size | 3 × 500 ml (trade multipack) |
| Use | Helps protect against corrosion/scale; supports efficiency |
| System type | Sealed/vented wet central heating systems |
FAQs
Can I add F1 without cleaning first?
For best results, clean and flush the system with a suitable cleaner (e.g. Fernox F3/F8) before dosing with F1 Protector.
How much should I use?
Follow the manufacturer’s dosing guidance for your system volume. Check inhibitor concentration during periodic servicing.
Is this safe for all common system metals?
F1 Protector is formulated for mixed-metal heating systems. Always adhere to the product label and system manufacturer guidance.