Solid Teflon Back-Up Ring, Size -123
Teflon
Buna 90 Duro Back-Up Ring, Size -350
Buna 90 Duro Back-Up Ring, Size -236
Buna 90 Duro Back-Up Ring, Size -133
Buna 90 Duro Back-Up Ring, Size -126
Buna 90 Duro Back-Up Ring, Size -214
Buna 90 Duro Back-Up Ring, Size -019