Nalgene DS3126-0175 Polycarbonate Conical-Bottom Centrifuge Bottle Adapters.NALGENE conical-bottom centrifuge bottles (Nalge Cat. Nos. 3143, 3144, 3145) MUST be used with this adapter. Fits most commonly used low- and high-speed rotors. This adapter is not interchangeable with adapters from other manufacturers.
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