Marshall Excelsior MEC male 1 5/16” ACME with quick closing poppet X female 1-5/16”ACME X male1”20 X female ¼” inverted flare.   If you want the best and safest gas connection, Marshall Excelsior is the brand you want. Lifetime warranty!  Gas tee for connecting a grill and one other appliance to 11, 20, 30 or 40 lb propane tanks that are being used. A cap Is also included for the 1”- 20 and ¼” female inverted flare.