Solid Teflon Back-Up Ring, Size -021
Teflon
Buna 90 Duro Back-Up Ring, Size -315
Buna 90 Duro Back-Up Ring, Size -236
Buna 90 Duro Back-Up Ring, Size -124
Buna 90 Duro Back-Up Ring, Size -126
Buna 90 Duro Back-Up Ring, Size -117
Buna 90 Duro Back-Up Ring, Size -125