Im using a 6 stage . Mine has these
1st stage Sediment, 5mic
2nd stage sediment , 1 mic
3rd stage crabon block 5mic
4th stage carbon block 5 mic
5th stage DI resin
6th stage RO filter membrain TDS = 0ppm..
1st stage Sediment, 5mic
2nd stage sediment , 1 mic
3rd stage crabon block 5mic
4th stage carbon block 5 mic
5th stage DI resin
6th stage RO filter membrain TDS = 0ppm..