The Modular Outboard Air Diverter allows you to tap into your existing Eastwood Air Management system and add two more 1/4"NPT lines. Simply install between the outboard air management component and the air line. Compatible with all Eastwood 1/4" & 1/2" outlet filters, desiccant dryers and regulators. Kit includes 3 way machined diverter, O-Ring, modular connector and instructions. Use 12727 for inboard diverter. Made in USA