NBK Products 20504 Pellet Stove Cast Iron Baffle for Quadra-Fire SRV7034-263. NBK Products Number 20504. Pellet Stove Cast Iron Baffle for Quadra-Fire SRV7034-263. Replacement for numbers 7034-148 and 7034-261. Replacement for Edge 60, Mt Vernon AE Insert, Mt Vernon AE, Mt Vernon E2 FS, Mt Vernon E2i, Trekker Insert, and Trekker. Pellet Stove Cast Iron Baffle for Quadra-Fire. Check out my other items.