Set Of O Rings And Gasket For Mr Reservoirs.Material:Nitrile Rubber. As Per Specification Irs-R -48/88 Gr-D Class 5.2.4.1,Hardness 80+/-5 Shore A. Set Consist Of 03 Items 1. O Ring Id 94.3+/-0.5Mm X Cro Ss Section(W) 5.7+/-0.12Mm---1No./Set 2. O Ring Id 92Mm X Cross Section(W)6Mm---1No./Set 3. Gasket As P Er Drg No.Elw/Bsl/4/Wag-9/31.007---1 No./Set [ Warranty Period: 30 Months After The Date Of Delivery ]