For decades Eaton's SNAP-RING filter bags have been an affordable solution for process applications. Made under ISO 9001 quality control standards, SNAP-RING bags are manufactured to be reliable bag after bag. Bag N-10-P03S-50 is a size 03 with retention rating of 10 microns. This bag model is constructed using heavy-duty sewing techniques. The felt is nylon with a carbon steel ring sewn in the top. The top ring is designed to "snap" into place when installed. This creates a barrier that prevents bypass. Eaton Part Number: F3AB00268 comes in box quantities of 50.