The 3M Aqua-Pure C-Cyst-FF Cysts Scale Reduction Carbon Water Filter Cartridge is a white polypropylene cartridge designed for household use. With a filter life of 6 months, it can remove cyst contaminants and has a flow rate range of 1.5 - 2.0 gallons per minute. Compatible with the Cyst-FF model, this under sink filter cartridge operates at a pressure range of 25 - 125 PSI and has an operating temperature range of 40 - 100 degrees Fahrenheit. Made in the USA, this cartridge is suitable for removing cysts from your water supply, providing you with clean and safe drinking water for your household.