The Bendix AD-9 Air Dryer is the perfect solution for your air system needs. This air dryer is designed to function as a stand-alone unit and does not require any additional equipment. It features a 3/4-14 NPT supply port, 1/4-18 NPT control port, and 3/4-14 NPT delivery port. The AD-9 utilizes a hard seat purge valve type and a 2-way sealed connector (male) for the heater connector. It is the perfect choice for reliable and efficient air system performance. FleetPride is your First Click in Heavy Duty®.