Head over to Coupons.com where you can print this rare Buy 2 Get 1 FREE 600ml Bottle of Penafiel Coupon! If you shop at Walmart, you can pick up 3 of these for $1.76 - only $.59 each after coupon. If you're not familiar with this brand, it's owned by the Dr. Pepper Snapple Group. This coupon is valid through September 30th.