RO SYSTEM RO-50G-D02 ,5stage Ro system 3pcs housing cap together with shelf and pressure gauge RO SYSTEMRO-50G-D02 :equiped with with manu flush ,capacity is 50GPD ... and no leakage. 5 stage :PP,granular carbon,block carbon ,50G Hidrotek membrane,T33 inline post carbon.goose facucet,GF-01C ... ,low pressure and high pressure switch.pressure gauge with oil. RO SYSTEM