The BK Resources BKDR-HD4 Heavy Duty Drain is engineered specifically with a 3-1/2″ NPS opening, making it an optimal choice for mop sinks within various commercial and industrial settings. Constructed from high-quality brass, this drain ensures long-lasting durability and resilience, even under heavy usage conditions. Its robust design is particularly suited for environments such as commercial kitchens, janitorial facilities, and other high-demand areas where efficient drainage solutions are crucial. The precision of the 3-1/2″ NPS opening facilitates seamless integration with standard plumbing fixtures, ensuring compatibility and ease of installation. This heavy-duty drain from BK Resources stands out for its capability to handle substantial water flow, making it a reliable component in maintaining cleanliness and operational efficiency in workspaces. As an integral part of any mop sink setup, the BKDR-HD4 combines functionality with strength, offering a specialized solution for professionals in sectors requiring robust water management systems. Its brass construction not only provides structural integrity but also adds a layer of resistance against corrosion and wear, ensuring it remains a dependable part of your drainage infrastructure over time. The BK Resources BKDR-HD4 is thus a valuable asset for industry professionals seeking quality and performance in their mop sink drainage solutions.