The K2548 inline calcite filter is one of Omnipure's K series inline filters that easily install directly to your water line and reduce weeping or seepage potential. This filter contains calcite, a crushed and screened white marble media, to neutralize acidic or low pH waters to a safer, less corrosive effluent. Available with various fittings to meet your water line's specifications. Additional Details ------------------------------ Product description: The K2548 inline calcite filter is one of Omnipure's K series inline filters that easily install directly to your water line and reduce weeping or seepage potential. This filter contains calcite, a crushed and screened white marble media, to neutralize acidic or low pH waters to a safer, less corrosive effluent. Available with various fittings to meet your water line's specifications.