Compatible Standard Replacement Filter Set for TYENT Rettin MMP series 5050/7070/9090/11T Standard Compatible Replacement Filter Set for Tyent Rettin MMP Series 5050/7070/9090/11T MADE IN KOREA/This filter set is Tyent compatible replacements made by Korean OEM manufacturer. Quantity: 1ea Pre-Carbon (1st) + 1ea Post-Carbon (2nd); Standard 1 Micron/ Filtration capacity: 1,000gal (4000l) Compatible Models: MMP 5050/7070/7070T/9090/9090T/11T NOT Compatible with UCE (Under-Counter) and ACE