Oxygen Flow Meters, Heavy Duty
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Designed specifically for use on fish transport tanks, these heavy-duty flow meters feature an extra wing nut for locking the valve setting. Needle valves provide precise oxygen flow regulation, while handle shuts valve on or off completely. Inlet/outlet fits 1/4" (6 mm) oxygen hose. Flow range is .8 to 8.0 lpm; an "H" next to part number designates high flow range of 2.5 to 25 lpm. One-year warranty.