Gorilla Lite Line indoor grow tents carry the Gorilla torch with its height adjusting technology. While these tents have a lower starting height, growers still have the ability to increase their overall growing height on the fly, with the 1 ft. height extension kit (sold separately). Low ceiling height of your growing environment got you down? Well, let the Lite Line bring you right back up. Gorilla Grow Tents and Lite Line are your only height extending tent options worldwide for your grow room set up.