The Royal Cobra Lock™ System is a non-metallic joint restraint system for use in municipal water, fire protection, sewer force mains, gravity sewers and other restrained joint applications. This system is available in nominal sizes 100mm - 300mm (4” - 12”) in Pressure Classes 150 (DR18) in 6.1 metre (20’) standard lengths. The system includes PVC C900 dimension pipe, a coupling and locking splines. All of the components of this system are completely non-metallic eliminating corrosion problems. The Royal CobraLock™ System is listed and certified to CSA B137.3, FM, NSF-61 and ULC Standards and meets the performance requirements of AWWA C900.