(4) 5 MICRON COMMERCIAL SEDIMENT FILTERS
COMMERCIAL GRADE Spun polypropylene nominal 5 micron sediment reduction filter for 10 inch filter housings. Stage 1 of your system. This product contains FOUR poly 5 micron sediment filters. For use as a prefilter and for protection against particulates. Best if changed every 4-6 months. This filter will change color quickly, this does not indicate exhaustion of the filter. Exhaustion of the filter is usually accompanied by pressure loss to the system.