These big cars haul compressed liquefied petroleum gas. You'll find them loading out at refineries and unloading at regional propane distributors. Other loads include industrial and petrochemical gases such as butane and anhydrous ammonia (used for fertilizer). They'll look great in your oil industry, moving as bridge traffic, or waiting to be unloaded in a small town scene.
 
Ready-to-run models feature styrene bodies, metal handrails (where appropriate), razor-sharp painting and printing, free-rolling trucks and knuckle couplers.