The MH-3 Flowmeter is calibrated for use with the Oxymizer™ cannula for flight up to 18,000 ft. The MH-4 has two altitude flow scales. The left (compressed) scale is calibrated for the Oxymizer™ cannula and is limited to flight of 18,000 ft. and below. The right scale is calibrated for a standard cannula or facemask up to 25,000-30,000 ft. Flow meter without tubing.
Flowmeters MH-3 and MH-4
$73.80
MH-3 or MH-4 Flowmeter. Without Tubing or clamps.
Mountain High Cylinder Duration Chart
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