HomeReplacement Water FilterBig Blue PP 1µContact Us to PurchaseFeatures Removes fine particles dirt, rust and other impurities. Shrink wrap, clean and reliable. Specification Model Type Spec. Remark FT-0015 Spun PP 1µ, for Big Size Housing using 10" Note Do not use where the water is microbiologically unsafe or of unknown quality without adequate disinfection before or after the unit. The system is to be supplied only with cold water. The system and installation shall comply with applicable state and local regulations.