Scale And Corrosion Inhibitor Specialty Filter 4.5"x 20"

  • Protects against scale & rust buildup on pipes & appliances

  • Premium-grade polyphosphate media for effective scale prevention

  • 20" filter treats up to 120,000 gallons of water

  • 10 Micron nominal rating

  • The 20" filter fits in 20" Big Blue Housings

  • Listed Price:$266.60
  • Total Saving:$76.61
  • Sales Price:$189.99

Options & Upgrades



    Protect your Home from Scale & Corrosion

    This APEC Scale and corrosion inhibitor water filter cartridge effectively treats hard water concerns faced by many homeowners. This filter uses slow release polyphosphate media which applies a self-healing coating to water pipes and appliances to protect and prevent further development of scale and corrosion. This food-grade media is a long lasting, high-capacity filter that will effectively inhibit scale and rust buildup to protect pipes, sinks, showers, water heaters & appliances for many years to come.

    The FI-SCALE20-BB filter will fit in our whole house 20" standard housings and it can treat up to 120,000 gallons of water.


    Benefits and applications

    • Prolongs the lifespan of pipes and all water appliances including water heaters, dishwashers, washing machines, coffee makers, shower heads and more
    • Less cleaning and scrubbing for your tubs, showers and sinks
    • Improves heating & cooling efficiency of appliances to save on energy costs
Performance & Specification

    Cartridge Specifications and Performance Data

    Model FI-SCALE20-BB


    4.5"D x 20"L


    10.5 lbs

    Filter Media 


    Micron Rating

    10 micron

    Capacity (gal.)

    up to 120,000 gallons

    Pressure Range

    25 psi to 100 psi

    Temperature Rating

    40º F to 100º F
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