Flanders RC-AF-KIT Air Filter Kit, 18x20x2, is a filter assembly with an 18x20x2 footprint. The available description references a Rockwell Collins air filter kit and lists "Filter W C3-300 Filtrair" as part of the kit. The RC-AF-KIT model designation and its 18x20x2 dimensions help identify the correct filter module for systems requiring that size and configuration.
