Big Blue 20" x 4.5" filter cartridges allow for minimal pressure reduction and extended filter life
Iron & Manganese filter efficiently reduces iron (6.0 -> 0.01 ppm), manganese (3.0 -> 0.01 ppm), Arsenic (1.0 -> 0.01 ppm) and lasts up to 3 times longer than greensand because the catalytic media is not consumed in the process
High capacity polypropylene sediment filter achieves filtration down to 5 micron, CTO Carbon Block filter uses high quality coconut shell carbon for maximum filtration efficiency and filter life, both tested by independent third-party to meet NSF/ANSI Standard