Set Of Rubber 'O' Ring For Flow Well Make Mph (Oil Pump). Model 1143 L. One Set Consists Of 04 Items In 05 Nos. 1) 'O' Ring Id= 195Mm. Thickness = 05Mm. Qty-01 No/Set, 2) 'O' Ring Id= 88Mm. Thickness = 03Mm. Qty-02 No/Set., 3) 'O' Ring Id= 75Mm. Thickness= 05Mm. Qty-01 No/Set., 4) 'O' Ring Id= 38Mm. T Hickness = 05Mm. Qty-01 No/Set. ]