Solid Teflon Back-Up Ring, Size -112
Teflon
Buna 90 Duro Back-Up Ring, Size -121
Buna 90 Duro Back-Up Ring, Size -315
Buna 90 Duro Back-Up Ring, Size -138
Buna 90 Duro Back-Up Ring, Size -225
Buna 90 Duro Back-Up Ring, Size -145
Buna 90 Duro Back-Up Ring, Size -129