The Krowne 21-401L low-lead coupling flanges are a reliable solution for commercial kitchens, designed specifically for Royal Series faucets. These flanges feature 1/2-inch NPT female inlets and adjustable centers, allowing for precise, secure, and compliant water inlet connections. Ideal for restaurant and foodservice professionals, these low-lead flanges meet safety standards while providing flexibility in installation. Whether retrofitting existing systems or setting up new ones, these flanges ensure durability and performance in high-traffic environments. With a 3-year limited warranty, they offer long-term reliability for professional kitchens.