Yellow Jacket 49511 LIG FILL PRESSURE GAUGE
With 1% accuracy (Class 1) calibration. Gauges are completely filled with glycerin for maximum protection from pulsation. Large 3-1/2 in (90 mm) diameter gauge with refrigerants color-coded on the dials in bold numbers. Offset stem fits all major manifold brands.
Part #16226

Pressure Gauge (Manifold Gauge)
The Yellow Jacket 49511 is a robust, glycerin liquid-filled analog gauge, primarily used in manifold gauge sets for servicing R-22-based systems. The liquid filling helps protect the gauge from internal pulsation and vibration, which extends its life and ensures steady readings. It features a large dial with color-coded temperature and pressure scales for easy reading. The gauge is intended for the high-side (red) pressure measurement of a manifold.
- Liquid-Filled: Filled with glycerin for maximum protection from pulsation and vibration.
- High Accuracy: Calibrated to 1% accuracy (Class 1).
- Large Dial: Features a large 3-1/2" (90 mm) diameter dial with bold, easy-to-read numbers.
- Dual Scale Readings: Dials include both Fahrenheit (°F) and Celsius (°C) temperature scales, along with PSI and Bar pressure scales.
- Refrigerant Specific: Color-coded for use with R-22 refrigerant.
- Universal Compatibility: The offset stem and 1/8" NPT male connection fit all major manifold brands.
- Zero Adjustment: Includes a rear recalibration screw (or "now with zero adjustment" feature) for field calibration.
- Durable: Described as corrosion  and shock-resistant
- Made in USA.
- Gauge Color:Â Red (High Side)
- Gauge Fill Type:Â Liquid-Filled (Glycerin)
- Pressure Range:Â 0 to 500 PSI (0 to 34 Bar)
- Connection Size:Â 1/8" NPT Male connection
- Dial Diameter:Â 3-1/2 inches (90 mm)
- Accuracy:Â 1% (Class 1)
- Temperature Rating: 0°F to 122°F (-18°C to 50°C)
- Units Measured:Â Celsius, Fahrenheit, PSI, Bar
- Brand:Â Yellow JacketAccuracy:Â 0.01Color:Â RedConnection Size:Â 1/8 in MNPTCountry of Origin:Â USDial Diameter:Â 3-1/2 inLiquid Filled:Â GlycerinManufacturer Name:Â Ritchie Engineering CoPressure Range:Â 0 to 500 psiTemperature Rating:Â 0 to 122 deg FType:Â Liquid Filled

