Above example: Ultraspun Filter Polypropylene, 1 micron, 20” length, Single Open End w/Flat Closed End , 222 Viton O rings.

Cross-reference: Polypropylene absolute rated media with polypropylene core DOE Description ULTRASPUN USP Series Pall Profile II RF Series Parker MBP Series Filterite Nexus NXA Series 0.5 µm 20”long USP00-20 R2F005 Not available NXA0.5-20U 1 µm 40” long USP01-40 F4F010 MBP1M40N NXA1-40U 10 µm 20” long USP10-20 R2F100 MBP10M20N NXA10-20U 30 µm 30” long USP30-30 R3F030 MBP30M30N NXA30-30U 5 µm 60” long USP05-60 Not available Not available Not available