The Krowne 21-138L add-on faucet is a versatile and durable solution for commercial kitchens, designed to seamlessly mount onto existing pre-rinse units. With a robust 6" swing spout, this faucet provides excellent reach into multiple compartments, making it ideal for heavy-duty use in professional settings. Its double O-ring construction and welded shoulder enhance durability, while the included backflow preventer reduces the risk of cross-contamination, ensuring compliance with food safety standards. Whether you're updating an existing setup or need a reliable add-on for your commercial sink, this low-lead compliant faucet offers a practical and long-lasting solution. The interchangeable design also allows compatibility with other brand components, providing flexibility for restaurant and kitchen equipment managers.