Neptune 500AR Series Hydraulic Diaphragm Metering Pump


  • Designed with an automatic air release valve to be used in sodium hypochlorite service or with other chemicals that off-gas at room temperature
  • Features a PVC head design that minimizes internal space
  • All ports slope upward to vent gas through the top of the pump and away from the diaphragm
  • Can be specified on any Neptune Series 500E pump with capacities up to 9gph