The DCDA2,2",4A SER,LF BRZ,CFM from Apollo Conbraco Industries is a high-efficiency double check valve designed for backflow prevention in plumbing systems. With a size of 2 inches and a 4A series rating, this valve is constructed from lead-free bronze, ensuring durability and compliance with health standards. It operates effectively under various pressure conditions, making it suitable for both residential and commercial applications. The valve's compact design allows for easy installation and maintenance, providing peace of mind for system operators. Ideal for potable water systems, this valve is essential for ensuring safe water delivery.