Replaces HILLIARD HILCO part number PL310-20-C. All products are guaranteed to be free from manufacturing defects and meet or exceed factory specifications in terms of quality, fit, form and functionality. . Mission Filter high quality filter elements are constructed to withstand challenging filtration applications and exacting requirements in the industrial world, and our replacement for HILLIARD HILCO PL310-20-C is no exception. Our product line includes oil air separators, hydraulic, tank breathers, air filters for compressors, mobile oil filtration unit assemblies and other unique products to cover all your filter needs for the industrial environment.Part numbers and brand names are to cross reference only. References made to companies are solely to identify the compatibility with Mission Filter Inc. All trademarks, registered or unregistered, are trademarks of their respective owners.