Profile: E F Gauge Co., Inc. specializes in offering above & underground gauges, brackets, stabilizer kit, alarm kit and rebuilding kit. Supreme™ gauge is a vapor-tight, automatic gauge for any fluid commonly stored in horizontal & vertical storge tanks. It features enclosed weatherproof structure with complete vapor seal. It has no mechanical seals to wear out or to obstruct tape function. The rigid construction and non-corrosive materials used in this gauge assure accurate gauging at all times & under all conditions. The sturdy reel assembly is actuated by a trouble-free spring mechanism which eliminates all slack in the measuring tape as it moves up and down with float. The tape and its graduations are clearly visible through a window enclosed in reel housing. The window can be easily moved to one side should frost prevent reading or for maintenance of tape.