Napoleon 825 GrillGrate comes with the GrateTool is the ultimate upgrade to your Napoleon Prestige Pro 825 RSBI. GrillGrates are reversible interlocking panels, giving you two grilling surfaces; rails up or on the flat side. GrillGrates tame flare-ups and even out the hot and cool spots common with all gas grills. This gives you even, stable temperatures across the cooking surface. This set is a drop-in replacement for the stock Prestige Pro 825 RSBI grates. Constructed from hard anodized aluminum, GrillGrates will never rust. Made in the USA.