Cell Safe Anti-scale Hard Water Filter - Ultra Upgrade W/ 20% More Media! - WITFILPREHARDULTRA

Cell Safe (™) is an inline filter that helps eliminate scale build up. It is very easy to conceal and does not require a canister/housing. This composite pre-filter not only prevents scaling, but it actually eliminates scale build-up, thereby improving the health and longevity of your Ionizer. If you have hard water this is a must have.