Suitable for use on cold water lines and helps to prevent the formation of limescale build-up. The inhibitor provides whole house protection from soft limescale. It is maintenance-free, requires no earth bonding, and can be mounted vertically or horizontally. Suitable for compression pipe and requires no chemicals or additives. The unit is full metal with a durable chrome-plated finish, conforms to Part L Building Regulations, and comes with a lifetime guarantee. Maximum working pressure: 12 Bar. Maximum temperature: 80degC. Maximum flow rate: 1.08 l/sec (14gpm). WRAS approved.