For a limited time: UPS RED 1Lbs $35
2-4lbs $40 *Continental USA Only
2-4lbs $40 *Continental USA Only
O-Rings & Backup Rings » Metric Back Up Rings for U Cup Seals
Metric Back Up Rings for U Cup Seals
| Prefix | Profile Image | Profile | Brand | Seal Name | Materials | Parts List | |
| MBNU |  |  | MBNU SOLID BACK-UP RINGS METRIC | DELRIN® / NYLON® | Parts List | ||
| MBTU |  |  | MBTU SOLID BACK-UP RINGS METRIC | 40% Bronze Filled PTFE | Parts List |