See all products of Chemical additives C3 CLEANER, Removes sludge, limescale and debris. C1 INHIBITOR, Protects against corrosion and limescale. C7 BIOCIDE, Prevents bacterial and fungal growth. C4 LEAK SEALER, Liquid sealer. C3 FAST CLEANER, Removes sludge, limescale and debris. C1 FAST INHIBITOR, Protects against corrosion and limescale.