Item # RF-IMPCAL. Replacement Alkalizer Filter for Crown Water Filter Housings Only.
The Alkalizer filter raises the pH of your water by 1-2 points to reduce acidity and re-mineralize water.
This filter must be replaced every 6-12 months for maximum contaminant reduction.
A water that works great in a Los Angeles home may not be the best for a New York apartment. There are different contaminants in each water supply, and we're here to help you choose which filter system is best for you.