Help provide a leak-proof connection from unthreaded to threaded SDR-9 CTS pipe using the Flo-Lock™ PVC Gripper Adapter, 1-1/2 in. SDR-9 CTS X 1-1/2 in. MPT. This easy-fit adapter has one 1-1/2 in. SDR-9 CTS compression end and one 1-1/2 in. MPT end to connect pipe and can form a leak-proof joint with less chance of pull-out when properly installed. Helps prevent costly property damage, pipe corrosion, and system issues. Durable gripper coupling is made of PVC plastic. Gripper is made of steel. O-Ring is made of EPDM. Use fittings and other valves to set up a new irrigation system, expand an existing system, or make repairs.