Solid Teflon Back-Up Ring, Size -211
Teflon
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Buna 90 Duro Back-Up Ring, Size -222
Buna 90 Duro Back-Up Ring, Size -138
Buna 90 Duro Back-Up Ring, Size -117
Buna 90 Duro Back-Up Ring, Size -128
Buna 90 Duro Back-Up Ring, Size -315
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