specification: 1/8" male NPT pipe thread Center/back installation 0-160 PSI Meter readings are 0, 20, 40, 60, 80, 100, 120, 140, 160 PSI 1.5" Face Size: approx. 4* 4*4cm Net weight: about. 51 grams note: Due to manual measurement, please allow 1-3mm to be different. Due to the difference in display and lighting, the image may not reflect the actual color of the project. thank you for understanding. feature: The meter can be used to measure air, water, oil, gas and any material that is non-corrosive to brass. This is a chrome-plated steel bezel with a chrome-plated steel bezel. A new 0-160 PSI backpack air compressor pressure gauge. The meter has a 1.5 inch surface and has 1/8 inch NPT threads in the center of the rear of the meter. Air compressor pressure 1.5" face back mounted 1/8" NPT 0-160 PSI.