DescriptionAre you looking for a professional, yet affordable Oxygen Flowmeter? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional Oxygen Flowmeter must meet you needs. It is one of the best choices for you.Feature- Color: Transparent. - Material: Acrylic. - Size: Approx. 9.3x2.2x2.2 cm/3.66x0.86x0.86 inch. - Made of premium material for durable and practical use. - Clear scale for easy to read. - Oxygen Flow Meter with for Professional Use. - Beautiful look, low weight, unbreakable and long life span. - Widely used for measuring and controlling the flow of oxygen concentrator,also used for gas.