ro service kit & TDS Meter Combo Package Contents :- 1 Vontron 80 Gpd Membrane, 1 Healthy Carbon , 1 Healthy Sediment , 4 Connectors, 1 Teflon, 1 Spanner, 2 Meter 1/8 Pipe, 1 Tds Meter Compatible With All Ro Water Purifiers Easy To Install, Do Self Installation