The Murphy LM500 series maintains the crankcase oil level of an engine, pump or compressor. Adjusted to the correct running oil level, it will replenish oil as it is used. The low-level switch will alarm and/or shut-down the equipment, if supply oil is lost and the equipment continues to use oil. The simple and unique Thumb-Valve is non-clogging and provides a positive, leak-free seal.
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