SERIES 100 General Equipment Gauge SERIES 200 Compressed Gas/ Welding Gauge SERIES 300 Refrigeration Gauge Ammonia Gauge SERIES 400 2.5" Diaphragm Gauge SERIES 500 Stainless Process Gauge SERIES 600 General Equipment Receiver Gauge SERIES 1000 4" All S.S. Process Gauges SERIES 1500 4.5" Process Gauge Configuration A 4.5" Process Gauge Configuration B SERIES 1600 Test Gauge SERIES 1700 Pressure Receiver Gauge SERIES 1800 4.5" Process Bellows Gauge SERIES 2000 Economy Process Gauge PRESSURE Gauge OPTIONS GENERAL INFO C SERIES S SERIES T SERIES E SERIES MINI SEALS   Upper Housing: 304 S.S., 1/4" or 1/2" NPT instrument connection Diaphragm: 316 L, Hastelloy B, Hastelloy C or Tantalum welded to upper housing Lower Housing: 316 L standard ; wide variety of materials available. Including Monel, Nickel, Inconel, Hastelloy B or C, Carpenter 20, Titanium, PVC, Polypropylene and TFE Teflon Process Connections:    Thread attached: 1/4", 1/2", 3/4", and 1" NPT    Flange attached: Consult Factory Gasket: Glass-filled Teflon Pressure Rating: Vacuum to 2500 psi (5000 psi available upon request)