Product Description ·【Compatibility】Suitable for faucets with 1/2″ or 3/8″ FEMALE NPT thread. ·【Ultra-long service life】When used with municipal water, each filter has a maximumservice life of 12 months or 8,000 gallons. ·【Innovative multistage filtration】The Waterdrop Direct Connect Undersink Water Filtration System uses innovative multistage filtration. ·【Easy installation】With innovative push-to-connect fittings, the entire installation process takes less than 3 minutes. ·【Fast flow rate & multiple uses】 The fast and stable water supply provides pure water that tastes like spring water. The tested full flow rate is 0.75 gpm at 60 psi. Replacement for 15UB-UF15UAW-UF (Only different in color with 15UA-UF)17UB-UF17UA-UF15UC-UFSituationUndersink/RV/BathroomUndersink/RV/BathroomUndersink/RV/BathroomUndersink/RV/BathroomRefrigerator/Icemaker/RVFaucet–×✓××Reduce Substancesmost of pσllutants larger than 0.01 micronmost of pσllutants larger than 0.01 micronmost of pσllutants larger than 0.01 micronmost of pσllutants larger than 0.01 micronmost of pσllutants larger than 0.01 micronFiltration Capacity16000 Gallons16000 Gallons19000 Gallons19000 Gallons16000 GallonsReduce TDSNoNoNoNoNoRetain Beneficial minerals✓✓✓✓✓Size–3.6 x 3.9 x 14.7 inches3.6 x 3.9 x 19.1 inches3.6 x 3.9 x 19.1 inches3.6 x 3.9 x 16.7 inches