Omnifilter TO6-SS2-S06 Filter Cartridge, 5 um Filter, Cellulose Carbon Filter Media, Pleated PaperOMNIFilter's TO6 10 in heavy duty 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. Unit: EA UPC: 047087303471 Model Number: TO6 SS2 S18 06