This apparatus can hold two dive tanks in an inverted position so that they can be dried after tumbling by forced hot air. Includes two tank stands, an air delivery pipe with two outlet ports, and an industrial-grade heat gun. The latter is 115-volt, 10-amp unit with an adjustable 750* F heat element suitable for drying all scuba tanks. One outlet vent on the air manifold is interchangeable into a smaller diameter pipe for drying older steel cylinders with 1/2" - NGT openings. NOTE: Care must be exercised NOT to over-heat aluminum tanks during drying. Our dryer's design makes over heating unlikely, but 325 F or more can impair a tank's tensile strength. See dryer manual, tank manufacturer's specification or Global Bulletin #42130.