The 4" Lead Free 860 Backflow is a reliable and efficient solution for preventing backflow in your plumbing system. Crafted with high-quality ductile iron, this backflow preventer ensures durability and longevity. Its flanged x flanged connection type and 4" x 4" connection size make it compatible with various plumbing setups. With a pressure rating of 175 PSI, it can handle high-pressure situations with ease. Manufactured by Watts, a trusted brand in the industry, this backflow preventer belongs to the LF860 Large Series, known for its superior performance. Keep your water supply safe and secure with the reduced pressure provided by this exceptional backflow preventer.