This is a plumbing supplier buy out. this item is new but has been professionally checked for correct working condition. includes Air gap The Watts 1" Pressure Zone Valve Backflow Preventer LF009M2-QT is a manual valve designed specifically for water applications. This Reduced Pressure Zone (RPZ) backflow preventer is suitable for 1-inch pipes and is ideal for industrial and business settings that require reliable plumbing solutions. With the trusted Watts brand behind it, this valve ensures efficient operation and protection against backflow issues.