

Napoleon's 5" black 4-sided backerplate for the Oakville X4 gas insert. It measures 44" wide by 35" high around a 33 7/8" by 23 1/2" opening, and frames all four sides. It pairs with Napoleon's Oakville faceplates made for a 4-sided backerplate. It hooks onto the insert, and the side cutouts take the insert's rocker switch. Napoleon notes backer plates must not seal the old fireplace airtight. $449.