Fernox Cleaner F3 Express 400ml, a pH-neutral, eco-friendly cleaner that removes sludge, scale, and debris to restore efficiency and silence boiler noise. Ideal for new and existing systems, it ensures long-term performance and energy savings.

Key Benefits

• Clears Sludge & Limescale: Eliminates debris, reduces boiler noise, and restores heat transfer efficiency.
• Pre-Commissioning Ready: Meets BS 7593:2019, clearing flux and debris from new systems to extend boiler life.
• Saves Energy: With Fernox Protector F1, achieve up to 15% gas savings per heating cycle.
• High Coverage: One 400ml recyclable canister treats 130L, 16 radiators, or 250m² of underfloor heating.
• Universal Compatibility: Safe for all metals, including aluminium.

Fernox Express Technology

Using Barrier Pressure Pack technology with non-flammable compressed air, Cleaner F3 Express doses in 30 seconds without draining the system. Apply via radiator, towel rail, filling loop, or TF1 System Filter for mess-free, corrosion-safe cleaning.

Why Choose Cleaner F3 Express?

• Fast & Effective: Quickly clears blockages to enhance efficiency and reduce maintenance costs.
• Eco-Friendly: Non-hazardous, recyclable packaging minimizes environmental impact.
• Easy Application: No-drain dosing saves time.
• Standards Compliant: Aligns with BS 7593:2019 for professional-grade cleaning.

How to Use

Add via radiator, towel rail, or TF1 Filter. Pair with Fernox Protector F1 for lasting protection. Check annually for sustained performance.

Optimize Your System

Fernox Cleaner F3 Express ensures a quieter, more efficient heating system.