Oxygen Flowmeter is a pressure compensated flowmeter that delivers an accurate prescribed flow to patients from the gas source. Our oxygen flowmeter provides an accuracy of ±5% of full scale reading and is pressure compensated to ensure that the flowmeter maintains its accuracy independent of varying gas supply pressures. It is suitable for most types of respiratory therapy. Features Lightweight aluminum body with brass innner core aids portability Bottom outlet with diss male Shut-off control valve will not drift from a set flow rate over extended durations Incorporates durable impact resistant polycarbonate outer and metering tubes for maximum durability Flowmeters calibrated for 50 psi sources with back pressure compensated Stainless steel float eliminates sticking caused by static electricity for unparalleled accuracy Safety disphragm protects patients in the event of excess pressure Control knob for quick recognition of the gas used by the flowmeter Dual taper needle valve prevents damage to the seat that eventually leaks Gas specific inlet fitting to prevent connection to wrong gas type Colour-coded inlet fittings, outlet fittings, and control knobs for quick recognition of the gas used by the flowmeter