Merrill MFG PGLNL100 0-100 PSI No-Lead Liquid Filled Stainless Steel Case Pressure Gauge. 0-100 PSI Liquid Filled Stainless Steel Case Pressure Gauge No-Lead. Liquid Filled for resistance to corrosive atmosphere, vibration and pulsation dampening. Pressure gauges are suitable for water, air, steam, and other pressure applications that will not deteriorate brass alloys. Stain Steel Case No-Lead (Pb Free) Install in vertical position only