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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 set of 4 filters replacement for RO Pure Max IISmartap, and Duro water systems 25 -35 GPD Reverse Osmosis 4 Vessel Smartap Push Button Monitored Systems.


1- Sediment pre-filter

2- Carbon pre-filter.

3- TFC Thin Film Composite membrane.

4- Carbon post filter.


  • Produce the ultimate clean water by removing chlorine, total dissolved solids (TDS), and other impurities as small as an atom.
  • Your beverages and ice will consistently taste better with the quality of bottled water right from your tap.
  • Eliminate the need for pour-through pitchers or faucet filters, with far superior results.
  • Cost-effective, Get extremely high-quality water at the most economical cost for point-of-use applications.
  • For a family of four, the RO PureMAX II drinking system produces ultra-clean water for approximately $0.25 per day.
  • The perfect companion to your Resonator or SoftMAX system The Pure Max II, Smartap, and DuroII are the perfect addition to any whole-house Resonator conditioning or SoftMAX softening system.
  • The conditioner or softener protects the RO Pure Max II, Smartap, and Duro from hard minerals that can clog the RO membrane.
  • At the same time, the RO Pure Max II, Smartap, and Duro produce extremely high-quality water for drinking and cooking.
  • It goes above and beyond what’s achievable with the whole-house Reionator or SoftMAX alone. Environmentally friendly Produce fresh tasting, high-quality water right from the tap. Fill your reusable water bottle before leaving the house and eliminate the need for bottled water.

SmarTap - RO Pure Max II - Duro Reverse Osmosis Replacement set of 4 cartridges

SKU: ST-55577-PX
$198.00 Regular Price
$143.00Sale Price
  • Pure Max II, Smartap, Duro, NOVATEK, Pure Aqua, Pure Flo, Pura, and Smartap, for the 4 Vessel 35-75 GPD reverse osmosis systems with push button monitor.

            Set Of 4 Replacement Filters Cartridges to be used with the               following  4 Stage Under Sink Reverse Osmosis Water Systems:

    • duro,
    • Smartap,
    • 4vtfc50g,
    • NOVATEK,
    • Pure Aqua Water Systems,
    • Pure Flo Water Systems,
    • Pura Water Systems,
    • RO Pure Max II
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