Our Porcelain-coated Rib Racks are available in 5-Slot and 9-Slot models. Both racks can be stacked in an XL 400 to cook 14 racks of ribs simultaneously. One rack per box. 5-Slot model compatible with XL 400, LG 300, JR 200, Kamado, G 420 (#342). 9-Slot compatible with XL 400 & G 420 (#341).