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SCIENCEWARE® Roto-Flo™ Flow Indicators, Bel-Art


H19937-0001 H19937-0003 H19937-0002
These indicators provide immediate visualization of flow in a tubing line.

  • Brightly colored paddle wheels spin when gas or liquid flows through a system
  • Molded of clear polystyrene
  • Smooth connecting barbs for easy installation
  • Maximum recommended pressure is 10 psig

Internal flow channel diameter is 5 mm (7/32"), paddle wheel shell is 25 mm (1"), and overall length is 51 mm (2").

Not for use with corrosive chemicals or fluids with temperatures in excess of 64 °C (150 °F).



Expand All / Collapse All
Fits Tubing I.D. Tube Ends Wheel Color Supplier No. Catalog Number Unit List Price Quantity
4.8–6.4 mm (3/161/4") Barbed Blue H19937-0001 P-1020-1 Box of 1 Retrieving


Max. Flow Rate 10 L/min.
Min. flow rate 0.5 L/min.
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