Compare to OEM 87351, and RPI CMK141.  Includes New Auto drain to replace the old auto drain.  Air techniques maintenance schedule states to replace the Auto drain jar every year. Instead  of replacing the bowl at manufacturers price, purchase the autodrain which is the item that needs to be changed annually.

• Use in  following oil-less double headed compressors: AirStar® 21 NEO,  AirStar® 21M,  AirStar® 22 NEO,  AirStar® 22M,  AirStar® 30 NEO ,  AirStar® 30

Made to equal and or exceed  original factory specs.