Solid Teflon Back-Up Ring, Size -021
Teflon
Buna 90 Duro Back-Up Ring, Size -222
Buna 90 Duro Back-Up Ring, Size -126
Buna 90 Duro Back-Up Ring, Size -145
Buna 90 Duro Back-Up Ring, Size -350
Buna 90 Duro Back-Up Ring, Size -138
Buna 90 Duro Back-Up Ring, Size -129