Auto Switch 2-Stage Auto Regulator for RV, Van, Trailer The Gas One Auto Changeover LP Propane Gas Regulator is definitely a must for your dual propane rack, allowing you to easily remove empty cylinders in need of replacement without interrupting your propane supply. The propane regulator is made employing premium quality, highly durable materials and superior finishes, made to last for many years. Not entirely convinced? Here are some of the amazing features of this propane hose regulator: 1. Rated for 190.000 BTU; 2. Compatible with dual propane tanks, RVs, Vans, Trailers; 3. Suitable for 48" hose; 4. Includes 2 x 12" braided pigtail hoses; 5. Made with heavy duty rustproof stainless steel; 6. Factory set at 11WC; 7. Auto switch to reserve when primary is empty