Forespar PUREWATER+All-In-One Water Filtration System 0.5 Micron Replacement FilterPUREWATER+All In One Water Filtration System 0. 5 Micron Replacement Filter Features: Simple filter change by twisting off faucet head simply dropping filter into cartridge without crawling under sink On demand ultra clean tasting water from your tank Elegantly styled Simple to install Compact filter housing maximizes under sink storage The FORESPAR PureWater + 0. 5 micron enhanced filter is a 0. 5 micron enhanced replacement filter for the PureWater