Fernox Central Heating Leak Sealer F4 Express - 400ml

Quick and convenient doses in 30 seconds
Simple to use with no mess
Added via a radiator adapter or filling loop supplied
Non-toxic, environmentally friendly formulation
100% recyclable can
Seeks out and seals most weeps and leaks
Saves time and money on draining down and repairing
Does not cause blockages of pumps, air vents, etc
Compatible with all Fernox Protectors