OMNIFilter’s RS14 whole house spun polypropylene cartridges are used for the reduction of sand, dirt, sediment and rust particles. Help to protect your plumbing and appliances from getting plugged with sediment, causing costly repairs. They are a cost effective solution for homes with sediment problems and can be used on chlorinated or non chlorinated water supplies.Polypropylene spun replacement cartridge, manufactured from 100% pure polypropyleneDesigned for medium sediment filtration for the whole houseReduces sediment, sand, dirt and rust particles