The Swift Green SGF-M9 Refrigerator Filter (UKF8001AXX Compatible) is an under sink filter cartridge. It produces better tasting, clean drinking and cooking water. The cartridge cleans the water by reducing sediments, turbidity, lead, 99% cysts, and removes the unpleasant taste and odor of chlorine. It is has a simple twist-In/Out design. The installation of the cartridge can be done with just a twist?ensuring hassle-free handling. The cartridge has a flow rate of 0.5 gpm. The operational pressure is between 20 psi and 100 psi. The temperature range is 33 degrees to 100 degrees Fahrenheit. The capacity is 300 gallons. The cartridge is certified to NSF/ANSI Standard 42. The cartridge should be replaced every 6 months.