The Krowne Metal 21-108L is a high-quality wall base designed for the Royal Series faucets. Featuring an 8" center configuration, this low lead compliant model is compatible with most brands, ensuring versatility in installation. It includes internal check valves that effectively prevent backflow and cross-contamination, enhancing safety and hygiene in your plumbing system. Ideal for commercial kitchens and food service environments, this durable and reliable wall base is a practical choice for maintaining optimal water quality.