The Stellar® TMAX™ Propane and LP Gas Service Trucks from Stellar Industries, Inc. are extremely versatile. They make transporting, loading and unloading gas cylinders a simple, single-person operation without the need for a trailer or additional setting equipment. The Propane Gas Service Bodies are designed to haul a single 1000-gallon or two 500-gallon propane tanks, plus everything necessary to install and service the tanks.