Filters water for whole home, installed in-line with cold water mains pipe Reduces levels of Chlorine & many other chemical compounds High Flow Rate: Full Bore 22mm BSP (3/4") fittings for minimal reduction in water pressure Dimensions: H34 W24 D21 (cm). Servicing: Replace filter every 6 Months* dependant upon usage Please note assembly is required to attach bracket and fittings. Whole House filter system , features full bore fittings for minimal reduction in water pressure.