Premium Heavy Duty 6-stage Countertop Reverse Osmosis Purification System with water softener & Alkaline (increase pH of water) filter, 75 GPD membrane This is our best performing Countertop Reverse Osmosis System especially designed for hard water. Removes all major dangerous contaminants (more than 200), including chlorine, chloramines, viruses, bacteria, arsenic, asbestos, VOCs, pesticides and etc. Made in USA. Powerful 6 stage filtration. 75 GPD US Made Membrane No any plumbing job or permanent fixture required. Connect to kitchen faucet within 30 seconds Replacement filter set: http://www.amazon.com/gp/product/B00WDOE76Y Instantly transforms tap water into healthy, top quality, <span class="a-text-bold">alkaline </span>drinking water Less than 60 seconds to install No any plumbing job or permanent fixture required 8-12 months or 1000 gallons 6 per gallon 3 gallons of drinking water per hour State of the art 6-stage Reverse Osmosis filtration Removes more than 600 contaminants Designed for hard tap water or well water Removes all major dangerous contaminants, including chlorine, chloramines, viruses, bacteria, arsenic, asbestos, VOCs, pesticides and etc. Increase pH level from 6-7 up to 8-9.5 (alkaline level) Designed and Assembled in USA (California) <span class="a-text-bold">6th stage: 3-in-1 filter (Alkaline, ORP and Tourmaline). Unique  filter increases water pH level from 6-7 Ph to 8.5-9.5. Filter contents 3 different media balls. </span> Negative potential (ORP) alkaline water is able to balance pH value of human body providing anti-oxidant effect. There a lot of other benefits of drinking alkaline water.