The System-Guard™ Filter Cartridges have 65% more dirt holding capacity than our standard spun polypropylene cartridges. New microfiber technology provides a tightly controlled graduated microporous structure for greater filtration efficiency† with less pressure drop* than any other spun polypropylene cartridge.

This is the best performing sediment depth cartridge SWT has ever offered and is FDA compliant. It is specifically designed as a reverse osmosis prefilter, but can be used in all water treatment applications.