4 Inch Liquid Filled Pressure Gauge With Stainless Steel Case And Chrome Plated Brass Connection Lower Mount Quarter Inch NPT Vacuum Minus 30 InHg To 0 Dual Scale Psi Bar With KPa Guide Ideal For Oil Water Air HVAC Hydraulics And Industrial Use
✔️ Dual psi/bar/kPa scales, -30 to 0 inHg vacuum, 1/4 NPT (Single)
This 4-inch liquid-filled pressure gauge combines a stainless steel case with a lower-mount 1/4 NPT connection for rugged installations. It’s ideal for oil, water, air, HVAC, hydraulics, and general industrial use, delivering reliable readings even in vibration-heavy environments.
✅ 4-inch dial (101.6 mm) diameter, liquid-filled for vibration damping
✅ Stainless steel case with polycarbonate window for durability and visibility
✅ Lower mount, 1/4-in NPT connection (6.35 mm) for easy installation
✅ Dual scale readouts: psi, bar with kPa guidance; vacuum -30 to 0 inHg
✅ ASME B40.1 Grade A accuracy ±2.5% of span
✅ Wetted parts brass and copper alloy; compatible with non-corrosive media
✅ Suitable for oil, water, air, HVAC, hydraulics and industrial use
💡 What is a liquid-filled pressure gauge used for in HVAC and industrial systems? This handy device provides accurate, damped readings in tough environments. - Handy for monitoring pressure in oil, water, and air lines across equipment - Reads dual scales psi/bar with kPa guidance for quick conversions - Vacuum monitoring from -30 inHg to 0 helps with safety checks