A fairly new lubricant in the diving world, this polyalphaolefin-based oil has become very popular for Nitrox production because of its high resistance to oxidative breakdown. Synthesized with food-grade components complying with FDA H-1 specifications, this translucent fluid has very low volatility, high hydrolytic resistance, no toxicity, and a high flash point. It has seen widespread use in modern compressors, especially for Nitrox continuous blending operations. Like most synthetics, it has an extended shelf life. Gallon bottle.