Mr O-Ring 1X3 Metric EPDM O-Ring - 70A Durometer, 3 mm ID, 5 mm OD, 1 mm CS, Black (Pack of 250): Amazon.com: Industrial & Scientific
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SILICONE 70 DUROMETER O-RING 24 MM ID X 3 MM CS | APG
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Mr O-Ring 1X3 Metric EPDM O-Ring - 70A Durometer, 3 mm ID, 5 mm OD, 1 mm CS, Black (Pack of 250): Amazon.com: Industrial & Scientific
70 mm x 3 mm O-Ring | MayDay Seals Material Nitrile 70