OMNIFilter’s TO1 whole house cellulose impregnated carbon paper cartridges are used for the reduction of sand, dirt, sediment and rust particles. They help to protect your plumbing and appliances from getting plugged with sediment, causing costly repairs. They also reduce tastes and odors, making the water more pleasant. They are a cost effective solution for homes with sediment problems when used on chlorinated water supplies.Whole house replacement cellulose carbon impregnated paper cartridgeDesigned for fine sediment and taste and odor filtration for the whole houseReduces sediment, sand, dirt, rust particles to 5 microns along with chlorine and other tastes and odors