Product Details: The Bendix AD-IP Series 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 soft seat purge valve type, a new desiccant that works longer, and a 2-way sealed connector (male) for the heater connector. The supply port is 1/2-14 NPT, the control port is 1/4-18 NPT, and the delivery port is 1/2-14 NPT. This air dryer is reliable, efficient, and easy to install. FleetPride is your First Click in Heavy Duty®.