No other fuel filter or fuel water separator fits and serves Cat® equipment like our product does. Committed to long and efficient equipment life, we produce proprietary Cat Fuel Filters in our own facilities, where we control quality and consistently deliver superior parts. Cat Filters offer maximum protection of vital engine parts and optimum performance, leading to the lowest owning and operating costs for your Cat iron. We offer filters with several efficiency ratings: • Standard Efficiency Filters offer reliable filtration of contaminants, delivering cost-effective value and protection to your engine. • Advanced Efficiency Filters have increased contamination control without giving up dirt-holding capacity for stricter component and emission requirements in newer equipment. They are also available for many machines as an upgrade from standard filters to provide an increased level of protection. • Ultra High Efficiency Filters provide optimum contamination control in all applications while maintaining capacity. They are recommended as a clean-out filter after any service work.