A perfect fit for your cartridge filter!

The Nature2 CF Pool Purifier drops into the cartridge filter of your in-ground or above-ground pool up to 25,000 gallons. When you place a Nature2 CF into your filter and activate the Purifier, you'll see and feel the exhilarating difference in water quality. There are no changes to your system and no installation costs. It's that easy.

Nature2 Purifier uses the same minerals found in nature to trap bacteria, algae and viruses. Just drop a Nature2 CF into your cartridge filter, activate the Purifier and let it do the rest for four months. Just sit back and start experiencing a safer, more refreshing pool.

ALSO AVAILABLE IN 6-PACK (ITEM# W21500)