Fernox 56603 Leak Sealer

Plumbing Superstore

The Fernox Chemicals Central Heating Leak Sealer F4 - 500ml is perfect for reducing pressure loss in sealed systems. It effectively seals most weeps and small, hard-to-reach leaks. This sealer saves both time and money as it prevents the need for draining down and repairing. It ensures there are no blockages in pumps, air vents, or similar components. The F4 formula is compatible with all metals and materials commonly found in central heating systems, making it versatile and reliable. This product is efficient for maintaining system integrity without causing further issues.. Fernox Chemicals Central Heating Leak Sealer F4 - 500ml

City Plumbing

The F4 is suitable to be used throughout a central heating system to seal small leaks, and weeps which may cause pressure loss, and boiler breakdown. Once dispersed within the system it will be effective 1-24 hours after application. The unique sealing efficiency of this proven product has been specifically developed to prevent blockages, or restrictions within the boiler, or vulnerable system components such as pumps, and safety devices.