The Watts LF009M3-QT-FS 3/4 Inch Lead-Free Backflow Preventer Assembly is a high-quality product designed to prevent backflow in plumbing systems. Made by Watts, a reputable brand in the industry, this unit is a single 3/4 inch reduced pressure zone (RPZ) backflow preventer assembly. Manufactured in the United States, this product ensures a reliable and efficient solution for protecting our water supply from potential contamination. Perfect for use in various industrial and commercial applications, this backflow preventer assembly is a valuable investment for maintaining clean and safe water systems.