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OF140-4 Watts

OneFlow Anti-Scale System for up to 4 gpm (15 lpm) - Single Cartridge

Series OF140-4 OneFlow Anti-Scale System provides protection from scale formation on internal and external plumbing surfaces. The OneFlow system is a single cartridge-based system that may be installed on a cold water line prior to a water-using device (water heater, hot-beverage system, appliance, steamer, etc.) that requires protection from the ill effects of hard water.


  • Chemical-free, salt-free scale prevention system for tap water
  • Connects to cold water supply
  • Maximum flow rate: 4 gpm
  • Single filter housing

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Select options below to identify the UPC, Order Code, and Repair Kit for a specific OF140-4