... GPD=gallon per dayStage 1: 10”, 5 micron PP meltblown Sediment filter cartridge that removes sand, silt, rust particles,etcStage 2: ... taste reduction, odor reductionStage 3: 10”, CTO, carbon block filter cartridge that remove cholorine, taste, odor, and the granular carbon ... : (5 stages)Stage 1: 10”, 5 micron PP meltblown Sediment filter cartridge that removes sand, silt, rust particles,etcStage 2: 10 ...