Natural Chemistry's Perfect Weekly Triple Action Phosphate Remover provides superior pool water quality in no time! The perfect 3-in-1 pool maintenance product. Pool Chemical Features - Phosphate Remover, 3L bottle - Add a capful per 8,000 gallons each week - Enzyme blend, non-clouding phosphate remover and evaporative water barrier Make regular pool maintenance easy and efficient with Natural Chemistry's Perfect Weekly Triple Action Phosphate Remover. Combining the benefits of SMARTZyme technology, PHOSfree technology and COVERfree technology, the Perfect Weekly Phosphate Remover provides you with superior water quality with less time spent on maintenance. Simply add one capful per 8,000 gallons of water into your skimmer and watch your water become more clear! Containing the only broad spectrum enzyme blend, non-clouding phosphate remover and evaporative water barrier, this is the perfect 3 in 1 maintenance product.