Used Pin Lock Style Kegs from Adventures in Homebrewing. These are pressure tested and guaranteed to hold pressure. 22-24″ Tall, 9″ Wide. Heavy Duty Stainless Kegs. Satisfaction Guaranteed. A set of new o-rings are also included.

AIH has generally great availability and great deals on these kegs. Check product page for current price, description and availability.

=5 Gallon Cornelius Keg Pin Lock Used (Coke) – via Adventures in Homebrewing

Note that these are also available in four packs

Also: Kegerator Tips & Gear | Keg Repair Part #s | Recent Keg Finds