1、TECHNICAL PARAMETERS: Diaphragm water pump maximum shut off pressure is 45PSI, maximum open waterflow is 11LPM/2.9GPH, maximum head for 30meter 2、LOW NOISE: Positive displacement diaphragm pump, capable of being run dry. The working noise of the pump is about 55‑60 decibels, and the fixed installation noise is lower 3、EXCELLENT QUALITY: Diaphragm pump adopt 100 percent full copper wire quality motor, possess long service life, no leakage, quiet operating. Changeable pressure switch, spare parts supported 4、WIDE APPLICATION: Diaphragm water pump can be used for marine yachts, RVs, automobiles, household, universal industry, agricultural misting, catering services, distillation equipment, boats, and vans, office building, etc. 5、WIDE APPLICATION: Micro diaphragm pump can be used for RV water supply, marine and yacht water supply, faucet pressurization, automatic filling equipment, liquid self service vending machines, equipment water circulation cooling