iSpring F10KU 7-Stage Alkaline Mineral UV RO System 1-Year Supply Filter Pack Fits RCC7AK-UV 10 pieces of 10 inch x 2.5 inch replacement water filters included, good for one year Supply Individually wrapped to keep freshness Fits iSpring 7-stage ro alkaline UV water systems, and most other brand Name ro systems Produces perfectly PH-balanced alkaline water, and gives back healthy minerals UV kills 99% of bacteria and virus