Universal fit. porcelain coated steel heat distribution plate. distributes heat evenly for improved gas grilling. easy to assemble & install. replaces lava rock & rock grate. helps control & reduce flare ups & enhances the flavor of food. fits gas grills with single or dual control burners. easily adjusts to fit most gas grills. Improves burner performance & extends the life of your burners. Porcelain coating resists rust & corrosion. Provides outstanding heat distribution & temperature control. Angled design aids in grease drainage. Extends from 10.25" to 25".