Product Details: The Power Products AD-9 Air Dryer is the perfect solution for your air drying needs. This stand-alone unit does not require any additional equipment and is designed to provide reliable and efficient air drying. The AD-9 features a hard seat purge valve type, which ensures a longer life for the desiccant. Additionally, the AD-9 uses a 2-way sealed connector (male) for the heater connector, providing a secure connection. With its 1/2-14 NPT delivery port, the AD-9 is the perfect choice for your air drying needs. FleetPride is your First Click in Heavy Duty®.