From Keg Connection:

From the product description, check product page for current description, price and availability:

These are re-conditioned 5 Gallon Pin Lock, Soda Kegs (Coke style). These kegs have been cleaned and soaked in a hot “Brew Clean” solution, re-rinsed, lubed and re-pressurized to check the seals. The kegs are in good shape, but could have small dings, dents or scratches. These will not effect the function of the kegs. Many have stickers on the outside. They might be of either Cornelius, Firestone (also called Spartenburg) or Italian construction. All types of kegs are manufactured to the same specifications and are of the same quality. The lids and O-rings are interchangeable. We fully guarantee your satisfaction with the kegs you purchase. ***FREE O-RING PROMOTION: 1 LID, 2 POST AND 2 DIPTUBE O-RINGS FREE WITH YOUR ORDER!***

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