SP Bel-Art Liquid Flow Indicator 3/8 in. Hose Barb Connections

The SP Bel-Art F-19935 Liquid Flow Indicator is a simple, non-electrical device used to visually confirm that liquid is moving through a flexible tubing line. This device is a transparent section inserted into a fluid line and contains a small, highly visible, colored rotor or paddle. It is a simple, inexpensive way to check cooling water circulation, chemical transfer, or pump function. Flow indicators are frequently used to verify cooling water flow, and monitor fluid transfer.

Used, in great condition.