Casing type ro system*undersink style 6 stage 1st: aip-12 pp sediment(5m) 2nd: aic-12 gac 3rd: aip-12 pp sediment(1m) 4th:50gpd membrane(easywell) 5th:in-line gac 10"#aic-10 6th: 10" inline mineral filter *solenoid valve *booster pump *trans.-22024vdc, round plug *color carton