Silicon Rubber 'O' Rings Suitable For Transformer Oil Cooling Pipes (Metallic Pipes) As Per Clw Specification No.Clw/Es/3/0142 Alt-G Or Latest, As Per Fig. No-2 At Page No.8 , Size -Id-92Mm,Od-104Mm,Material-Fluor Silicon Rubber Mfq. Hardness:60 +-5 Shore (A),Colour- Blue [ Warranty Period: 30 Months After The Date Of Delivery ] ]