This is an equivalent replacement coalescing element for CECCATO/MARK part number 1617719203. It performs the separation duty inside a compressed air filter housing, gathering the fine oil and water droplets suspended in the air into larger drops that fall clear of the flow and drain away. Coalescing filtration is the stage that protects everything after it in the system. Dryers, regulators, pneumatic valves, air tools and finishing equipment all run longer and more predictably when oil carryover is dealt with at the filter rather than allowed to travel through the plant. That protection depends entirely on the media being in good condition. Explore our full coalescing filters and elements selection for other equivalents, or our air dryers collection if moisture rather than oil is the issue you are chasing. We are glad to cross reference a part number before you order. Note: This is an equivalent part and not an original equipment manufacturer (OEM) part number. Some manufacturers require OEM parts to maintain your warranty. | Air Supply Number: KP55-004