Joint Restraints, Retainer Glands - Series 600
Manufactured by Star® Pipe Canada Inc.
Mechanical Joint Retainer Glands for Ductile Iron Pipe, Valves and Fittings. Sizes 3" to 36".
American Society for Testing and Materials
AWWA C111/A21.11-12 - Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings
UL - Underwriters Laboratory Inc.