Solid Teflon Back-Up Ring, Size -211
Teflon
Buna 90 Duro Back-Up Ring, Size -020
Buna 90 Duro Back-Up Ring, Size -019
Buna 90 Duro Back-Up Ring, Size -137
Buna 90 Duro Back-Up Ring, Size -212
Buna 90 Duro Back-Up Ring, Size -141
Buna 90 Duro Back-Up Ring, Size -225