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332 Buna-N O-Ring, 70A Durometer, Black, 2-3/8" ID, 2-3/4" OD, 3/16" Width (Pack of 10): O Ring Seals: Amazon.com: Industrial & Scientific
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Amazon.com: The Hillman Group 56065 N70-332 Neoprene 'O' Ring, 2-3/4 x 2-3/8 x 3/16, 6-Pack : Industrial & Scientific
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