SS-2.5 Environmental Water Systems Essential Max Flow Drinking Water System The ESSENTIAL Max Flow offers full bed depth filtration and superior performance compared to the limited capacities of common in-line filters. The ESSENTIAL Max Flow can be used in-line for many applications.Made in the USA - enjoy a truly high quality product, no smell, no BPA or phthalatesChange the filter just once per year - easy twist-and-click to change it (takes 3 seconds!)No more buying, lugging, and storing bottled water - save over $2,000 per year!Enjoy delicious, odor-free water straight from your sink - incredibly convenientQuick and easy install in under 5 minutesNo drilling holes and no extra/second faucetsIdeal for small spaces, dorm rooms, apartments, and rentalsHigh capacity, high flow, single stage, in-line filter provides better tasting & quality filtered water.Filtered water at the speed of your faucet.Makes this one of the most convenient and cost effective filters available.Is installed directly to your faucet, no need for additional dispensers or holes in your counter top or sink.City water or well water*.