The Power Products 5.5" Type 12 Brake Diaphragm is designed to provide superior braking performance and reduce wear and tear on other brake components. This diaphragm helps to extend the life of your brakes by providing a reliable and consistent braking force. It is made from durable materials and is designed to withstand the toughest conditions. The diaphragm is easy to install and is compatible with most brake systems. With its superior performance and long-lasting durability, this diaphragm is the perfect choice for any vehicle. FleetPride is your First Click in Heavy Duty®.