Solid Teflon Back-Up Ring, Size -220
Teflon
Buna 90 Duro Back-Up Ring, Size -137
Buna 90 Duro Back-Up Ring, Size -133
Buna 90 Duro Back-Up Ring, Size -121
Buna 90 Duro Back-Up Ring, Size -350
Buna 90 Duro Back-Up Ring, Size -117
Buna 90 Duro Back-Up Ring, Size -241