PUREPLUS WFS5300A Under sink Water Filtration System Suitable: faucets with 1/2 or 3/8 inch FEMALE NPT thread. Operating Water Pressure: 30 PSI-100PSI Operating Temperature: 30-100oF Flow Rate: >2.5GPM/60PSI Application: kitchen, bathroom, RV, or office. 6 Stage Filtration technology for a 0.5-micron rate and Long Service Life Filter life up to 22000 gallons or 5 years.