Purchased 2 0-4000 PSI gliceryn filled Gauges. Bo...

Purchased 2 0-4000 PSI gliceryn filled Gauges. Both gauges leaked was sent another gauge and it also leaked. sent a picture of bubbles in the gauge back to supplier Directmaterial never heard an answer. the lower pressure gauges I go worked fine. What is up with your high pressure gauges leaking oil? I have a scuba filling Compressor and all I want is a 0-4000 psi gauge that doesn't leak oil down on my electric motor and maintains pressure.

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