Tecfluid Glass Tube Variable Area FlowmeterThe Tecfluid Glass Tube Variable Area Flowmeter is an easy to install flowmeter. They do not require straight sections for installation and come with protection bodies to prevent accidental breakage of the measurement tube. Flow measurement of gases and clear liquids Sizes from 1 2 through to 3; Borosilicate Glass Tube; Coated Steel or Stainless Steel Frames and Bodies Flanged or Threaded; Wide variety of wetted materials; Options: Alarms; 4 20 mA;