King Instrument Co., of Garden Grove, Calif., has introduced a new group of glass tube rotameters that offer excellent value. The 3″, 5″ and 10″ scale models have 304SS case enclosures and 316L SS internals and fittings. Capacities are from 0.5 to 132.0 gallons per month water, and 2-to-350 SCFM air. Scales are direct reading.