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Product DescriptionSierra 2" oil pressure gauge. The best instrumentation for big boats. White graphics on deep black faces with very rugged black nylon housings. Low-profile bezels in polished stainless with scratch-resistant glass. Reverse polarity protected. Silicone-damped pointers provide smooth sweep and easy reading in rough water. 12V. 0 - 80 PSI. Sierra Part #80180P.