This is one model of our R series booster pumps,a new designed big size series pump with a low noise,so called mute pump. This series have 7 models,GF-300G/GF-400G/GF-500G/GF-600G/GF-700G/GF-800G and so on, with different water flow and rated current,can meet your different needs for pumps.
The pump voltage is 24VDC,bypass pressue is around 135psi. The inlet&outlet ports can make to be NPT3/8" thread.
This series pump no have self-priming function,so the applicable water pressure should be above 10psi.
The detail technical data refer to below chart: