Multiport Valve Sand Filter 40mm 2280422 WatercoUpgrade your Waterco sand filter with the 40mm Multiport Valve (part 2280422) a complete, clamp style top mount valve engineered to replace worn or leaking valves and restore peak filtration performance. This 40mm model is designed for secure, easy service, delivering reliable operation across consistent backwashing and filtration cycles. Leak free, air pocket resistant design: Replaces the common grey or black hex valves that often harbor air leaks.