16 gallon - about 12 inches around and stand over 3 foot tall or so. They have dip tubes, but no disconnects. Oval lids do not have pressure relief valves. There are two extra ports that are 1/8" pipe thread, that would have to be plugged. Threads on top appear to be same thread as standard corny disconnects. I would prefer local pick up only - Columbus ohio. These weigh 36 pounds each and are big so shipping would be expensive. Price is $80.00 each. I have 2 available and accept Paypal.