Airgas Puritan Medical tube style flowmeter offers:

• Chrome plated machined brass
  
• Control Valve is back pressure compensated so flow accuracy is not affected by humidifiers, ventilators etc.
  
• Stainless Steel float yield excellent contrast with flowtube
  
• Color coded knob
  
• Internal filter included
  
• Designed to meet all current CGA, HCA and FDA regulations
  
• Oxygen 0-15 lpm
  
• Medical Air 0-15 lpm