Scale Free Replacement Filter 20" Big Blue Carbon Filter Cartridge

This is the required filter for scale free systems with Big Blue Filters prior to scale free system. This has to be replaced every 6-12 months.

MATRIKX® + CTO Extruded Activated Carbon Block Filter 4-1/4" x 20" Big-Blue

MATRIKX® + CTO/2 fi lters are the most widely used carbon block cartridges in the world and provide previously unattainable performance at the lowest price point. +CTO/2 fi lters simultaneously remove free chlorine and organic chemicals that contribute to taste and odor while providing the particulate fi ltration and dirt-holding capacity of an effi cient fi ve-micron nominal sediment fi lter. The MATRIKX + CTO®/2 is manufactured from high purity acid-washed activated carbon. Its dirt-holding capacity and the absence of carbon fi nes makes the MATRIKX + CTO®/2 the fi lter of choice. A superior carbon block, MATRIKX + CTO®/2 combines both high performance and integrity with an exceptional cost-to-performance value. As a result, MATRIKX + CTO®/2 virtually renders GAC fi lters obsolete by comparison