The Smartest Way to Enhance Your Kitchen: Reverse Osmosis Under-SinkCUCKOO's smart & compact under-sink design maximizes the use of your countertop space.Using only water & air pressure, CUCKOO's Reverse Osmosis Under-Sink saves energy and minimizes carbon emissions. Enjoy on-demand filtered room temperature water all day long with CUCKOO's 3.2 gallon water storage tank.5-stage filtration system provides high-quality, great-tasting drinking waterSave energy with a completely non-electric purification systemIncluded 3.2 gallon storage tank allows for on-demand filtered room temperature water that is good to drinkMaximize your space with a hidden under-sink design & slim faucetHassle-free DIY maintenance & self-installation filters How to Change the Filter: Watch this video on YouTube Learn more about CUCKOO’s Water Purifier Comparision!For more details on the CUCKOO Water Purifier, check out User Manuals & FAQ.Find CUKCOO water purifier rental near me