Welch Allyn Harvey DLX Double Head - Stethoscope.com
Amazon.com: Replacement Tube by CardioTubes fits Littmann Master Cardiology and Cardiology III Stethoscopes - 7mm Binaurals Dark Green TUBING : Industrial & Scientific
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Amazon.com: Replacement Tube by CardioTubes fits Littmann Classic II SE standard Stethoscopes - 5mm BLACK TUBING : Industrial & Scientific
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