Power generating stations, pipelines, and marine engines worldwide work hard, for long hours. Run times of 98+% are a standard in many industries. Fleetguard® ST2129 Winslow lube oil filters provide your engine with contaminant protection and an extended service life unmatched by other systems. No other filter media controls solids, water, lacquers, nitration, and oxidation like the Winslow depth filter.