A complete one diver 12 volt DC electric hookah.scuba dive compressor system for those inevitable practical applications. A tough, compact, single-head hookah dive compressor, tankless 12-volt hookah diving system is a terrific option for sail boaters, power boaters who don't want to carry gas, and metal detectives who want to keep a low, quiet profile. What better way to do those really fun projects like scraping barnacles, changing zincs, chopping line off the prop. No tank to bop the gel coat, no yo-yoing up and down til your lungs give out. Diving air will always be available without the need wear havy, bulky scuba tanks, or to fill them.