WATERRO INLINE QF 2.5″ SOFTENING CARTRIDGE The WATERRO Inline QF 2.5″ softening cartridge is a Quick Fit-type water softening filter filled with high-quality ion-exchange resin. It reduces water hardness, helps prevent limescale deposits and protects the reverse osmosis membrane. The cartridge is equipped with a Quick Fit (QF) connection for fast, tool-free replacement and is suitable for WATERRO reverse osmosis systems with Inline QF 2.5″ filters. Technical specification Parameter | Value Product | Inline softening cartridge Model | Inline QF 2.5″ Softening Filter type | Water softening filter Filter medium | Ion-exchange resin Connection | Quick Fit (QF) Size | Inline QF 2.5″ Water type | Cold water Main function | Water hardness reduction Application | RO pre-filtration Brand | WATERRO Key benefits - Quick Fit connection - Ion-exchange resin - Reduces water hardness - Helps prevent limescale deposits - Protects RO membranes - Fast, tool-free replacement - Long service life