Drip pans collect juices or hold your favorite cooking liquid to enhance the flavor of your food. When using a Primo Grill, Drip Pan Racks are needed to hold the drip pans. Primo's drip pan racks do double duty, however. Simply flip them over and they are also used as Heat Deflector Racks. When using Primo Ceramic Heat Deflectors, the racks are required. The Primo Heat Deflectors/Drip Pan Racks comes in set of 2. This set is for use with the Oval XL 400 grill.