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Pressure Gauges
GR Series
Glycerin Filled Gauges
Class 1.6, glycerin filled, bourdon tube gauge
Zero point adjustable
Color-coded for easy high and low side identification
2 ¾" (68 mm) outside diameter, easy to read
Pulse free
Standard ¹⁄8" NPT connection
Designation Description Part No.
GR-220-F-R12 R12/R22/R502 scales,
glycerin-filled, compound 7714013
GR-320-F-R12 R12/R22/R502 scales,
glycerin-filled, pressure 7714098
GR-220-F-R134a R134a/R404A/R507 scales,
glycerin-filled, compound 7714064
GR-320-F-R134a R134a/R404A/R507 scales,
glycerin-filled, pressure 7714102
Bourdon Tube Gauges
Glycerin Filled and dry Execution
GR-320
GR-220
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