The product is a Bendix T5010 SR-7 Spring Brake Modulating Valve, a crucial component for heavy equipment. This modulating valve regulates the braking system, ensuring smooth and controlled stops. It is a rare find as it is listed as old new stock, meaning it has been manufactured but not used, making it a valuable addition to any heavy equipment parts collection. With the trusted brand of Bendix, this spring brake modulating valve is sure to meet the high standards of quality and durability expected for heavy equipment maintenance and repair.