PEMU-250-P04S-50 Eaton SNAP-RING Filter Bag F3AB00604SNAP RING bags are made to strict ISO 9001 standards in order to produce a filter bag that is the same box after box, year after year. SNAP RING bags by Eaton are sewn using heavy duty thread and made to the highest quality standards. Bag PEMU 250 P04S 50 is a 04 size filter with a retention rating of 250 microns. This version of the SNAP RING is made using polyester multifilament with a carbon steel ring. Eaton filter bags are sold in box quantities