Water Filter Man Ltd Water Softener Alternative System, Proven 99.6% Effective Scale Prevention Salt-free water softener alternative Scale prevention filter proven to be 99.6% effective, this will prevent future scale build-up and de-scale existing pipework and appliances. Fittings: supplied with 3/4" bsp threaded fittings attached, simply wall mount the system and connect in-line with your cold mains water pipe (installation recommended by a plumber) Dimensions: h34 w24 d21 (cm). Servicing: replace every 3 years / 756,000 litres. High flow rate: full bore fittings for minimal/no reduction in water pressure, designed to work in homes with appliances sensitive to pressure including cold feed electric showers & combi boilers. 3 year on system parts and fixings excludes filter cartridge - to be replaced as required . Water filter man ltd branded product.