FITS MOST HUMIDIFIER HEATER FOR VENTILATOR OR CPAP MACHINE WITH A SLIDE IN BLOCK SECTION SIZE 30X5.5MM OR 1-3/16" X 7/32"
FIT 2.5 X 0.25 IN CHANNEL ONLY . THIS IS THE MOST COMMON MOUNTING CHANNEL ON MEDICAL EQUIPMENT
MOUNTABLE ON VERTICAL CHANNEL only