BBQ Grill Box for 3-Burner Stoves - The Camp Chef BB-90L Professional Barbeque Grill Box with hinged cover (for 3 burner stove) converts your stove into a powerful barbecue grill. It has a hinged, vented lid to seal in that delicious BBQ flavor, a built in thermometer and cast iron grill grates. The Heat Diffusion Box distributes heat evenly over the entire grilling surface while the Flavor Enhancing System with reverse-louvered plate vaporizes grease and drippings to enhance the flavors. It can also be used with wood chips for smoke cooking. This will cover two of the three burners on all Camp Chef 3 burner models: Expedition 3x, Tahoe, Big Gas Grill 3, GB, and TB models. Dimensions: 24 inch x 15-3/4 inch x 7 inch. 1 Year Manufacturer Warranty.