quadrafire mt. vernon ae cast iron baffle - srv7034-263 quadrafire quadrafire mt. vernon ae replacement cast iron srv7034-263 baffle fits the following pellet units: mt. vernon ae, mt. vernon ae insert, edge 60 pellet fireplace, mt vernon e2, mt vernon e2 insert, trekker and trekker insert. latest technology and design to prevent cracking. baffle goes into your firebox over your heat exchangers.