NORITZ H2Flow Replacement Cartridge for Select Select Tankless Water Heaters

H2F-C is a refill cartridge for the H2F anti-scale system. H2F prevents the formation of scale to improve efficiency of your tankless water heater. H2F does not use salt or chemicals and provides a more environmentally friendly alternative to water softeners. This hard water treatment will significantly reduce the frequency of maintenance on your tankless unit. It is designed for all water heater types and models regardless of manufacturer.|Compatible with any tank or tankless manufacturer, Noritz EZ98, EZ111, EZTR50, EZTR75, NRCP98, and NRCP111 models|Maintains longevity and efficiency of your tank or tankless unit|Refill cartridge for H2F|Replace cartridge every 2 years|Removes scale buildup|Chemical-free anti-scale treatment|1 year limited warranty|Easy installation onto tankless water heater|Quick replacement|Ideal for hard water treatment