Fernox

Leak Sealer F4 Express

Quick and convenient – doses in 30 seconds Simple to use with no mess Added via a radiator adapter

Ideal for reducing pressure loss from sealed systems Seals most weeps and small inaccessible leaks S

Quick and convenient – doses in 30 seconds Simple to use with no mess Reduces boiler noise and imp

Reduces boiler noise Improves heat transfer efficiency Compatible with all Fernox Protectors Compati

Neutralizes system water after using DS-40 System Cleaner Conditions system for application of corro

Rapidly removes limescale, black sludge and other deposits Restores circulation and improves heating

Suitable for use with all known powerflushing machines Removes sludge and scale and restores heating

Quick, convenient and simple to use – doses in 30 seconds 100% recyclable cans Added via a radiato

Neutral universal cleanser for pre-commissioning new systems in accordance with BS7593:2006 Removes