Bel-Art Scienceware 199370001 Blue Polystyrene Roto-Flo Flow Indicator, 3/16"- 1/4" ID
Brightly colored, blue polypropylene paddle wheel spins when gas or liquid flows through a system providing immediate visualization of flow. Molded clear polystyrene body with smooth connecting barbs for easy installation. Internal flow channel diameter is 5mm, paddle wheel shell is 25mm, overall length is 51mm. Maximum recommended pressure is 10 p.s.i.g. Minimum flow: 0.5 LPM. Maximum flow: 10 LPM. Not for use with corrosive chemicals or fluids with a temperature in excess of 64°C (147°F). Fits tubing I.D. 4.8 to 6.4mm (3/16 to 1/4").