August 13, 2012 No Comments FREE 32 oz Drink at Firehouse Subs Print out the coupon and redeem for a FREE 32 oz drink at Firehouse Subs. Expires September 13, 2012. Locator. FREE 32 oz Drink at Firehouse Subs -EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.