Harmsco WB-20W WaterBetter Polyester Water Filter Cartridge 20 Micron
8/1/2013
I wish I had found Harmsco filters earlier. We have hard water with high iron. These filters do an excellent job of actually catching the iron and reducing the iron staining in the sink tub and toilet even in the 20 micron size. And we can actually use the Harmsco 5 micron filters for a month - the other brands of 5 micron filters would restrict the water flow too much after only a few weeks.