King Instrument Co., of Garden Grove, Calif., introduces the 7420 Series featuring 75 mm and 150 mm scale borosilicate glass tube models with PVDF in-line connections. It features 316L stainless steel or Hastelloy internals, no O-rings, and capacities are .48 to 7.4 gallons per minute of water to 2 to 20 SCFM of air. Scales are direct reading and the polycarbonate shield makes a low-cost, chemical-resistant meter.