OMNIFilter’s RS2 whole house string wound 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.Whole house replacement string wound cartridge made from durable polypropylene stringDesigned for fine sediment filtration for the whole houseReduces sediment, sand, dirt and rust particles to 5 microns