- all Synthetic Fiber Circular Woven Jacketed Rubberized Fabric Reinforced Rubber Lining (rrl)diameter 63mm X 15mtr Length - Working Pressure 14kg/cm2 Proof Pressure 22kg/cm2 Burst Pressure 38kg/cm2 - Bearing Is: 636-88 Type-a Isi Mark - Dully Fitted with Hose Coupling Made of Gunmetal - Pair of Male & Female Parts Instantaneous - Pattern Size: 63mm X 63mmbearing Is: 903 Isi Mark.