Fernox Protector F1 500ml (liquid) 56599 Bath Rubber It is specifically formulated to

It is specifically formulated to prevent settling and aggregation of corrosion deposits and contaminants within central heating systems

or simply for situations where the water needs isolating on a regular basis

Compression system

It's 19mm Steel Braided Hose 24" Long

multi-strand 10mm² copper cable and 2 x strong

Fernox Protector F1 500ml (liquid) 56599 Bath Rubber It is specifically formulated toDescription Fernox Protector F1 500ml (liquid) 56599 product description: Protector F1 is a market leading inhibitor which prevents corrosion and limescale formation in central heating systems. This high performance product offers superior protection by uniquely combining three inhibitors of organic particles, which bind to the metal within the heating system to protect from debris alongside anodic inhibitors which react with the systems metal surface