SP Bel-Art Roto-Flo Polystyrene Flow Indicator for ¼ to ⁵/₁₆ in. I.D. Tubing (H19937-0002)

Size:Red, 1/4" - 5/16" ID Brightly colored, red 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. 6.4 to 7.9mm (1/4 to 5/16"). Research, industrial and healthcare professionals rely on SP Scienceware for their sample handling needs. Sold worldwide, Bel-Art and H-B Instrument brand laboratory supplies include over 5,000 items from safety wash bottles to fume hoods, thermometers, racks, desiccators, hydrometers, ice buckets, scoops and spoons. Custom calibration services, plastic molding, specialty coatings and wire manufacturing are also available. Wilmad-LabGlass brand laboratory glassware complements Bel-Art and H-B Instrument with over 7000 items including NMR and EPR consumables and specialty glassware, as well as custom fabrication for individual glassware, glass repair services and OEM glass parts. SP Scienceware is a division of Warminster, PA based SP Industries which also include SP Scientific laboratory, thermal management, and pharmaceutical production equipment and SP Ableware aids for daily living.