Rainshow'r GG-2010 Water Garden Filter System Promotes healthy plant nutrition and growth Features replaceable cartridge filters The Rainshow'r Gard'n Gro is completely non-toxic The Rainshow'r Gard'n Gro will process a minimum of 20,000 gallons of water The Gard'n Gro effectively removes over 85% of the chlorine from garden hose water