Liquid filled Pressure Gauge (Manometer) with Stainless Steel Bezel and Stainless Steel Roll Ring Liquid Filled GaugeCase sizes: 1.5, 2, 2.5, 3, 4 and ... %) Options and accessories: custom dial, metric scale, DIN 2.5% accuracy, U-Clamp, restrictors, special connections and more Stainless steel liquid Filled Gauge