... media, which have no effect on bronze and brassType :KP-001 (Dry Steel Case Pressure Gauge)Dial size:1.5", 2", 2 ... .5", 3, 3.5", 4", and 4.5", 6", 8 ... steel or chrome plated steelWindow (lens):Glass, acrylic, and polycarbonate lens availableDial plate:Single and dual scale (psi, kpa, mpa, bar, kg ...