PreFresh Spa & Pool Water Fill Filter

PreFresh Fill Filter starts your hot tub or pool with better water! Makes balancing easier and reduces impurities including scale, iron, staining minerals, odor-causing contaminates. A must for hard water or well users. Other uses include spot-free car washing. KDF Ionic Exchange + Granular Activated Charcoal Superior to single stage, clog-prone carbon blocks Wide spectrum 3-stage technology Product notes: Up to 20 spa refills. 2.5GPM. 20 micron. Activated charcoal derived from natural coconut shells. Best buy - compare to Hot Spring FreshStart® or any other. Keep spares on hand.