Solid Teflon Back-Up Ring, Size -220
Teflon
Buna 90 Duro Back-Up Ring, Size -020
Buna 90 Duro Back-Up Ring, Size -224
Buna 90 Duro Back-Up Ring, Size -121
Buna 90 Duro Back-Up Ring, Size -212
Buna 90 Duro Back-Up Ring, Size -225
Buna 90 Duro Back-Up Ring, Size -241