Culligan Easy-Change Undersink Filtration System a convenient and efficient way to improve your water quality right at your faucet. Featuring an easy-change twist on and twist off mechanism along with quick connect fittings, this system ensures a hassle- filter installation. Designed to fit neatly under your sink, it effectively reduces bad taste, odors, and other contaminants, providing cleaner and healthier water for drinking, cooking, and ice making. With a premium filtration level, the system operates within a water pressure range of 30 to 100 PSI and a temperature range of 40° to 100°F. The filter cartridge lasts up to six months or 500 gallons, making maintenance simple and predictable. The package includes the filter head with a built-in bracket, RC-EZ-4 cartridge, lead- faucet equipped with a filter life indicator, ¼-inch plastic tubing, supply adapter, mounting screws, and installation instructions, making it a complete solution for your home water filtration needs. Model Number: US-EZ-4