- Zenport Zen-Tek Pressure Gauge.
- Ammonia Filled.
- Stainless Steel.
This ammonia filled pressure gauge from Zenport features a 2.5-inch diameter stainless steel case and bezel, PC window and stainless steel 1/4 National Pipe, Thread bottom connection the internal components and connections are all stainless steel and will not corrode. This quality gauge features grade A accuracy (1.6%) and features a high visibility dial and number readout. Designed to measure pressures in systems charged with NH3 Ammonia. Zenport Style Number APG.