The MD40A ALUM/BUNA PT Coupling is engineered for high-performance applications, featuring a durable aluminum body and Buna-N seals. With a 4-inch diameter, this coupling provides a secure and leak-free connection for various piping systems. The Buna-N material offers excellent resistance to oils, fuels, and water, making it ideal for industrial and automotive uses. Its robust design ensures longevity and reliability, while the lightweight construction facilitates easy handling and installation. The MD40A coupling meets industry standards, ensuring compatibility and performance in demanding environments.