5 pack annual ultrafiltration filter pack – all the filters you need for one full year
(2) 11″ – 5 micron sediment filters (replace every 6 mos.) – p/n: WQCSC11
(2) 11″ – 5 micron carbon block filters (replace every 6 mos.) – p/n: WQCCC11
(1) 11″ – UF Hollow Fiber Ultrafiltration Membrane (replace once a year) – p/n: WQCHFC11
**NOTE : THIS WILL NOT WORK FOR WATTS PREMIER SYSTEMS