Complete Package: Comprehensive filtration system including GAC filter, carbon block filter, and specialized membrane for thorough water purification Advanced Filtration: High-capacity 50 GPD membrane technology ensures efficient removal of contaminants for cleaner drinking water Easy Installation: Compatible with Microline/TFC undersink water filtration systems for straightforward replacement and maintenance Triple Protection: Three-stage filtration process with specialized filters working together to deliver superior water quality Space Efficient: Compact undersink design maximizes available space while providing effective water filtration for your home Comes with GAC, carbon block and membrane.