The Nature2 W20750 spa water purifier filter cartridge insert is made to universally fit most spa filter cartridges.
Experience a revolutionary approach to sanitizing your spa. Nature2 uses minerals to destroy bacteria, and delivers the purest, clearest water imaginable. Nature2 W20750 drops right into your spa cartridge filter, making it easy for you to enjoy the benefits of mineral technology without any installation or special equipment purchases.

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Purifies spa water for spa sizes:  Up to 1,000 gallons

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