The NEW WATTS 0061935 Backflow Preventer 9D-M3 1/2' is a reliable product from Watts designed to prevent backflow in plumbing systems. With a pipe size of 1/2 inch, this backflow preventer is suitable for various industrial and commercial applications. Its high-quality construction and functional design ensure the smooth and efficient flow of water while effectively preventing the risk of contamination or backflow in the system. Ideal for use in businesses and industries requiring reliable plumbing solutions, this backflow preventer is a valuable addition to any system.