INFRA-RED BROILER BURNER TOP OF BOX, 12-3/4" X 6-3/4" OD, CERAMIC AREA 11-1/4" X 5-1/8" BOTTOM OF BOX 11-11/16" X 5-3/4" X 3-3/8"H VENTURI 2.122" DIA OD X 2-5/16"L, W/ BRACKET 4-3/16"L ORIFICE #48 X 3/8" CCT TOTAL LENGTH W/O ORIFICE 16-1/2" AMERICAN RANGE BROILER ARCM CHEESEMELTER, AVB VERTICAL BROILER.