The PCM4710U is a 1-inch PVC check valve by Merrill Manufacturing, designed for reliable backflow prevention in plumbing applications. Constructed from durable PVC, this valve offers excellent resistance to chemicals and corrosion. It operates effectively under a pressure rating of 150 PSI, making it suitable for various applications, including irrigation and drainage. The valve features 1" NPT connections, complying with ANSI standards for easy installation. The PCM4710U is an essential component for ensuring system integrity and preventing backflow.