Product Details: The SealCo Spring Brake Control Valve is the ultimate solution for all your braking needs. Our products are designed, engineered, manufactured, and assembled in the USA, ensuring the highest standards of quality and reliability. Crafted using primarily a zinc alloy, our valves are produced to the highest standards, ensuring maximum durability and longevity. We conduct 100 percent pneumatic and submersion testing on each valve to ensure that it meets our stringent quality standards. At SealCo, we believe in complete control over our products, which is why we have in-house die-cast and machine shop facilities that allow us to oversee every aspect of production. This enables us to ensure that every product we produce is of the highest quality. Our plug units save you time and money by simplifying the installation process, reducing downtime and maintenance costs. and with our 2-year warranty. FleetPride is your First Click in Heavy Duty®.