Blaze Insulated Jacket for LBM 25-Inch 3 Burner Gas Grills - BLZ-3-IJ. BLZ-3-IJ. Insulated Grill Jackets. This Blaze insulated jacket is a safety essential when installing your Blaze Prelude LBM 3-burner gas grill into a combustible enclosure such as an outdoor kitchen or BBQ island. This insulated jacket is constructed of stainless steel with a self-supporting ledge around the sides and back that adds one more layer of quality to your outdoor kitchen. Not for use with Blaze Professional LUX or LTE PRO Grills. Cutout Dimensions (in inches): 25 9/16 W x 22 1/4 D x 9 5/8 H.Some assembly required....