... Characteristics, parameters, certification: 1, Hushun high and low water pressure switch is manufactured by a professional ... whole. 2, High pressure ≥ 30Kg switch 3, Low water pressure start, blowing mouth can drive switch. ... always a right for you: high and low pressure switch has 8A-complete for general household ... bag, 500pcs in one carton. low water pressure switch, water filter switch,micro switch