Lets you hook-up your gas grill to the gas system on your RV, or it can be used with a small throwaway cylinder to give you a 2nd change to finish your meal on the grill if your big cylinder runs out of propane. Inlet: 1"-20 Female. Outlet: 1-5/16" Male Acme/Female POL w/ quick closing Poppet.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov