<b>The PH001 Alkaline Water Filter by Invigorated Water was specifically designed based on our customers needs, & to meet the water filtration needs of people all over the world.</b><br/> <br/> <b>PH001 fits with our pH RESTORE, pH REFRESH, & pH RECHARGE models.</b><br/> <br/> <ul> <li>HUGE Long-life 1500 cup, 96 gallon capacity.</li><br/> <li>Multi-stage filtration system to increase pH, remove heavy metals, chlorine and fluoride, and improve taste and smell. </li><br/> <br/> <b>Looking to take your water filtration to the next level?</b><br/>Our PH001 allows for our PH002 Ultrafiltration (UF) Membrane (search B07PZCLDRL) filter to be attached. <br/> <br/> <b>Check out the rest of our Water Filtration range, including our pitchers, portable bottle, & pH test kits, by visiting our Amazon storefront: <b>https://www.amazon.com/invigorated_water.</b><br/>