The Powers 141-176 Straight Check Stop is a concealed straight check stop designed for use with shower valve without check stops. It is made of bronze and has a male thread size of 1 1/2 inches. This product includes two stoppers, each with a connection size of 1/2 inch IPS. The check stops are not CEC compliant and are suitable for use with any shower valve without check stops. The overall length of the stoppers is 2 1/2 inches, and they are non-CEC compliant.