Alfresco Wok Ring For Alfresco Side Burners AG WR. AG WR. Wok Rings for Grills and Side Burners. Enjoy true wok cooking on your Alfresco side burners with the Alfresco wok ring. Compatible with true round bottom woks like the Alfresco 14 inch professional wok (AG WOK) and designed for use with Alfresco side burners.