Heavy Duty HVAC Compound Gauge Two And A Half Inch With Thirty InHg Vacuum Silicone Oil Filled Antifreeze Resistant Shockproof Stainless Steel Case Quarter Inch NPT Lower Mount Built To Last For All Weather Readings
✔️ 2.5" dial, 1/4" NPT lower mount, silicone oil-filled stainless
This heavy duty HVAC compound gauge is designed for accurate pressure readings in heating, ventilation, and air conditioning systems. Its 2.5-inch dial (63.5 mm) and 30 to 300 PSI, plus -30 inHg compound range, provide reliable measurements in extreme weather conditions. Built with a 304 stainless steel body, it resists corrosion and impact for long-term field use. This gauge is a direct replacement for most equipment with a 1/4" NPT lower mount.
✅ All-weather silicone-filled design (-40°F to 140°F) for accurate readings
✅ Durable 304 stainless steel body for weatherproof protection
✅ Vibration-stable readings with liquid-filled chamber
✅ 2.5" dial and 1/4" NPT lower mount for quick retrofit
✅ 30-300 PSI range with -30 inHg compound gauge for HVAC, water, air, or industrial use
💡 What is a HVAC pressure gauge used for in field maintenance and diagnostics?
- Handy for monitoring system pressure and refrigerant charge in the field - Useful for diagnosing leaks, blockages, and improper charging by watching readings - Designed to fit 2.5 inch dial and 1/4 in NPT lower mount for easy swaps