... Pump 1.Self-Priming, Smooth Operation 2.Built-in Check Valve 3.Silent Running, Santoprene Diaphragm SEAFLO Agricultural Spray Pump ... pressure fresh water pump, RV pump, wash-deck pump, pressure water pump, micro DC diaphragm pumps, mini pumps, DC pumps, automatic pump, micro pumpApplication ... protection. For the powered control you can choose pump without pressure protection.f) Duty Cycle: Intermittent ...