255 Series 
 Small water treatment equipment in the best supporting multi-valve, with a maximum diameter of the softening tank 355MM. The maximum water yield of up to 3 cubic meters / hour; external diameter is generally 3 / 4 ", but also choose one." 
 263 series and 268 series 
 Low pressure drop for high flow of small specially designed multi-way valve, usually an external diameter of 1. "163 series valves for filtration equipment, such as sand filters and carbon filters, be compatible with the filter diameter is 355MM tank, the maximum water production up to 1.8 cubic meters / hour. 168 series valves for softening, with the maximum diameter may be softening 355MM tank, maximum capacity of water, 3M 3;; / hour.