Omnipure K2548-JJ ALL Calcite water filter

This Calcite Filter has been designed to correct PH in filtered water. The calcite dissolves into the aggressive reverse osmosis water creating a neutral PH. Calcite adds mineral and TDS back into the water as well as stabilizing the pH level of the water. Use Calcite only for pH levels 6.0 - 6.8. Use Calcite/Corosex for pH levels 5.5 - 6.0.