Flame King offers ASME horizontal RV and trailer tanks in 5.9, 11.9, 12.2, 16, 17.6, 20.3, and 29.3-gallon capacities. The 5.9-gallon model is a good fit for smaller vans and campers, while the 20.3 and 29.3-gallon tanks are better suited for full-size travel trailers with multiple propane appliances. The 12.2-gallon model is one of the most popular for standard RVs. Some models, such as the 5.9-gallon, include remote valves and a solenoid for advanced installations.

ASME propane tank installations should always be completed by a licensed propane technician or certified RV service center. Proper installation requires secure mounting, correct regulator sizing, pressure testing, and compliance with NFPA 58 and applicable local codes. While Flame King ASME tanks arrive with valves pre-installed and some models include mounting brackets, the connection to your RV's propane system must be handled by a qualified professional for safety and code compliance.