Replacement Water FilterIon-resinContact Us to PurchaseFeatures High flow rate applications. Absorbs hardness minerals water and prevents scale from forming. Specification Model Type Spec. Remark FT-0026-1 commercial grade 20" 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.