Flame King YSN10 White RV Horizontal ASME LP Propane Tank (10 Gallon) Vapor LP Gas propane tank for use with Recreational Vehicles RV's which have under mounted ASME propane tanks installed to power LP gas appliances ASME Certified Fill valve, relief valve and level gauge installed High grade steel welded construction, powder coated for long lasting exterior protection X-ray and hydrostatic tested