Gem Bids For Elastomers, 1. O-Rings- Epr - 29.87 X 1.78 For Valcor Mvd Part No.At100sr250, 2. Back Up Ring - Epr-29.87 X 1.78 For Itemno.2, For Valcor Mvd Part No. At6015b250b, 3. O-Ring - Epr6.07 X 1.78 For Valcor Mvd Part No. At1001sr100, 4. Backup Ring - Epr-6.07 X 1.78 For Item No.3, For Valcor Mvd Partno. At6015b100b, 5. O-Ring - Epr - 12.37 X 2.62 For Valcormvd Part No. At1001sr1120, 6. O-Rings - Epr - 31.67 X2.62 For Valcor Mvd Part No. Aat1001sr1270, 7. O-Rings -Epr - 31.67 X 2.62 For Valcor Mvd Part No. At6015b1270b