Pressure tubes connect the pre-calibrated mouthpieces to the QRS spirometers. They are re-usable, but need to be replaced if kinked or if condensation forms inside the tube. Pressure tubes measure 48" long. Bag of 25.
Packaging
25 Each / Bag
Manuf / Supplier
Qrs Diagnostic
Manuf / Supplier #
Z-7000-2032
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