Hydraulics International Inc. (HII), established in 1976 and headquartered in Chatsworth, CA, is a leading provider of aviation ground support equipment (AGSE) including oxygen and nitrogen service systems on a global basis. Since inception, HII has maintained an intense focus on design and engineering, striving to stay at the forefront of AGSE technological advances. HII gas booster systems provide up to 50 percent more cylinder use and are available for pressures from 50 to 5,000 psi. 100 percent USA made. For more information visit www.hiigroup.com or call (818) 497-3400.