Free Double Cheeseburger with purchase of same. Redemption Instructions Log in to view the redemption instructions for this offer. Participating locations include: BURGER KING 1405 Porter St Frederick, MD 21702 Phone: 301-662-7755 Map BURGER KING 1405 Porter St Frederick, MD 21702 Phone: 301-662-7755 Map Sharing Options Share Offer Copy Link
