Smith-Blair announces the addition of the Pipe-Lock to its joint restraint product line. This product is a fabricated steel sleeve restraint coupling that can be used to connect and restrain plain end pipe to plain end pipe. The restrained joint requires no other method of restraining the pipe. It is designed to be used with the multi-seal gasket for more flexibility in nominal sizes 3 in. to 48 in., mixing IPS and ductile iron OD PVC.