NMO-150-P01E-50 Eaton SENTINEL Filter Bag F31R36560Featuring an all welded construction and sealing plastic ring, the Eaton SENTINEL filter bag is made to prevent bypass for reliable filtration. Bag descriptor NMO 150 P01E 50 means this is a size 01 filter bag that is 150 micron. All SENTINEL filter bags are welded, not sewn. This makes sturdy seams that prevent bypass and eliminate needle holes and loose fibers. Made of Nylon monofilament with a Polypropylene SENTINEL ring, this bag comes in box