... . The metric and the US system are available. BNT-185 control valveEasy to operate, high reliablility.Use safety AC 12V, less ... meter, timer, meter delay, timer meter mix) BNT-1851F (Softener valve by meter,timer, meter delay, timer meter mix)Regeneration: 1 ... Temperature: 1-42 degreePower supply: DC 12VInlet/outlet: 1/2", 3/4", 1" Drain pipe: 1/2"1 BNT-185 series control valve ...