The Natural Alternative to Chlorine Clean, clear water without harsh chemicals No more chlorine smell or eye irritation Simply drop it into your spa filter Nature2 Spa uses patented mineral-bed technology to destroy bacteria. Its revolutionary process significantly improves the look, feel and smell of your spa water, by dramatically reducing chlorine and bromine requirements. If used with MPS, the most recommended spa oxidant, Nature2 Spa becomes a complete spa sanitizing system - the only non-chlorine spa sanitizing option available. And managing your spa is easier than ever; Nature2 Spa slips into your spa filter and lasts up to four months. Benefits Simply drops right into your filterWorks with your existing filtration systemHassle-free maintenanceLeaves water softer and clearerProduct Specifications Available for spas: Up to 500 galsWorks with all spa flow ratesCartridge lasts 4 months Baracuda, Cense, Nature2, Polaris, Turbo Turtle, and Spawand are registered trademarks of Zodiac Pool Care, Inc., an affiliate of Zodiac Pool Systems, Inc. Alpha 2 and Flowkeeper are common law trademarks of Zodiac Pool Care, Inc., an affiliate of Zodiac Pool Systems, Inc. Zodiac is a registered trademark of Zodiac International, an affiliate of Zodiac Pool Systems, Inc. Use of Zodiac Pool Systems, Inc.'s and its subsidiaries and affiliates' trademarks for commercial purposes without prior written consent may constitute trademark infringement and unfair competition in violation of federal and state laws.