WIKA #52962344 Process Gauge Model: 233.34, MANOMETER 0-16 KG / CM2 4 "1/2" INF TERMOP High pressure gauges with reinforced PCS thermoplastic housing, Process Gauge Model: 233.34 Specifications according to data sheet: APM 02.10 Case: Black Fiberglass Reinforced Thermoplastic (Pocan B4225) Bezel ring: Threaded, Black Fiberglass Reinforced Thermoplastic (Pocan B4225) Measuring System: Stainless Steel Case filling: with Nominal size: 4.5" Scale range: 0/16 kg/cm2 2nd Scale / Special Scale: 2nd scale psi Process Connection: 1/2 NPT Connector location: lower mount