top of page

Aqua Sky, inc. Since 1996



 Worldwide Shipping From The Following Locations

Order Processing


  • U.S.A, Canada, Europe and Australia free shipping all orders.

  • Orders will be dispatched within one business day after an order has been received.

  • Orders placed on Friday after 3pm (Pacific Time) will begin processing the following Monday.

  • Confirmation email will be sent to customers once the order has been dispatched.

  • Please feel free to contact us for any additional information by email 

  • (New York U.S.A.) 

  • (California U.S.A.)

  • (Ontario Canada.)

  • (Athlone, Dublin Ireland.)   

  • (Manchester, U.K.)

  • (Dijon, France.)

  • (Nürnberg, Germany.)

  • (Kapfenberg, Austria.)

  • (Alice Springs, Australia.)

Buy online Calcium creates scale in pipes, on appliances and heating elements. This leads to higher heating and energy costs and expensive repairs to appliances, such as tankless water heaters, washing machines, and dishwashers.

The TAC Salt Free Water Conditioning System's Template Assisted Crystallization, or TAC process transforms Calcium ions into Calcium crystals, which are stable and cannot attach to pipes, surfaces, hardware or heat exchanger components. The crystals are so small they are easily rinsed away by the water flow.

This new media technology is also sold and marketed under a variety of other brand names like Next Scale Stop, Filtersorb as well as Watts ScaleNet, Noritz H2Flow.

TAC-4520 Anti-Scale Replacement Filter Benefits:

Scale is virtually eliminated

Aids in removing existing scale

No costly repairs to appliances due to scale

No salt

Saves water

No electricity

Replace cartridge every 2 years

Hard water is made up of calcium ions (Ca2+), magnesium ions (Mg2+), and bicarbonate ions (HCO3-). This anti-scale filter uses a template assisted crystallization process, or TAC process which transforms these dissolved ions into non-charged, neutral chemical bonds, of calcium and magnesium crystals. These microscopic crystals of scale quickly form in treated water and cannot attach to pipes or any surface, and are rinsed away downstream in a colloidal suspension by the water flow. These crystals are heat resistant and are unable to revert to it's dissolved state.

TAC-4520 20" x 4.5" Anti-Scale Replacement Cartridge for ScaleNet/OneFlow/H2Flow

  • Stage 1 - Pre-Membrane


    High-Grade 5 micron high-capacity polypropylene sediment filter

    • remove larger particles & suspended matter such as dirt, silt, rust, sand from water.
    • Protects and extends the life of the membrane and system
    • Recommend replace every 8-12 months, varies depend on the water source quality
    • Standard Size 24-3/4" / 10" 5.5 /15-( 97%)

bottom of page