Uses: 

(JWA) is used to remove trace water from solutions such as engine oils. It is absorbed into media and special paper. Delta P will determine when filter cartridge should be removed. Note: Not a coalescing filter cartridge.

(JOA) is used to remove trace oils from solutions such as compressors waste stream. It is absorbed into media. Delta P will also determine when filter cartridge should be removed. Note: Not a coalescing fitler cartridge.