JUMBO SERIES BURNERS - Ceramic coated chassis w/metal barstock and burner tubes all welded together. Available w/JUMBO/JUMBOSLIMAWO Logs ONLY. Fits Isokern Magnum Series 18" Deep Burner. Burners denoted - SS are for outdoor use. All burners include lava rock, fittings, flex line, embers damper clamp. ALL burners NG.