Product Description · 【Innovative multistage filtration】The Waterdrop Direct Connect Undersink Water Filtration System uses innovative multistage filtration. And it can effectively reduces heavy metals, chemical pollutants, sediment and other large particles. Enjoy healthy and pure water straight from your tap – no need to buy bottled water anymore! · 【NSF certified filter】Specially selected premium materials are lead-free, which is fully certified by the WQA against NSF 372 standard. Activated carbon block and other advanced filter media ensure efficient and safe filtration. KDF effectively keep filter sanitary.Tested against NSF 42 standards, it effectively reduces chlorine, taste and odor. The BPA-free, lead-free material ensures more reliable use from the inside out. · 【Premium dedicated faucet】The undersink water filtration system comes with a lead-free brushed stainless steel faucet. For separate drinking faucet you already have, WD-15UC system would be a better choice. · 【Easy installation】This undersink water filtration system should be connected only to a cold water supply. With innovative push-to-connect fittings, installation takes less than 3 minutes. The twist-and-lock design helps you replace the filter in 3 seconds without any tools. The undersink water filtration system comes with a feed water adapter that can connect to the tubing. The 3/8’’–1/2’’ convertor fitting can connect this system to 1/2’’ or 3/8’’ cold water lines and faucets. · 【Fast flow rate & multiple uses】The tested full flow rate of this undersink water filtration system is 0.75 gpm at 60 psi. The fast and stable water supply provides pure and fresh water that tastes like spring water. Developed for household and commercial use, Waterdrop Undersink Water Filtration System can be installed in your kitchen, RV, or office to meet your daily water needs. · Waterdrop under counter water filter reduces harmful pollutants while retains natural minerals, thus ensuring purity and good taste of water at the same time. · WD-UB filtration system is equipped with a faucet, and can not be connected with your orginal kitchen faucet. If you have a need of this, please choose WD-UA series like WD-17UA. · This system is designed for Municipal Tap Water. If using well water as the source, please make sure the feed water has been through a pre-filtration system, otherwise, large particles in well water will clog the filter easily and shorten filter life. For the solution with a pre-filtration system, please search for WD-PFK. Replacement for 17UB Undersink Filter System17UB-UF Undersink Filtration System with Faucet17UA Undersink Filtration System15UB Undersink Filtration SystemSituationUndersink/RV/BathroomUndersink/RV/BathroomUndersink/RV/BathroomUndersink/RV/BathroomReduce Substancesmost of pollutants such as chlorine, taste and odor, sediment, rust and other heavy metalsmost of pollutants larger than 0.01 micronmost of pollutants such as chlorine, taste and odor, sediment, rust and other heavy metalsmost of pollutants such as chlorine, taste and odor, sediment, rust and other heavy metalsFiltration Capacity19000 Gallons19000 Gallons19000 Gallons16000 GallonsGallons Per Minute0.75 GPM0.75 GPM0.75 GPM0.75 GPMReduce TDSNoNoNoNoRetain Beneficial minerals✓✓✓✓