O-ring case 245 o-rings - DIFF

In this case (Øint x Øext): 30 o-rings (1.9 x 7) 25 o-rings R5 (5.7 x 9.5) 10 o-rings R8 (8.9 x 14.3) 20 o-rings R11 (13.6 x 1.9) 25 o-rings R12 (15.1 x 20.5) 15 o-rings R13 (16.9 x 22.3) 5 o-rings (17 x 25) 20 o-rings R14 (18.4 x 23.8) 10 o-rings R12 (18.3 x 25.5) 15 o-rings R16 (19.8 x 27) 20 o-rings R17 (21.3 x 28.5) 10 o-rings (22 x 28) 10 o-rings R18 (23 x 30.2) 10 o-rings R19 (24.6 x 31.8) 10 o-rings R20 (26.2 x 33.4) 10 o-rings (27.8 x 35)