For sale is a 55 gallon drum that has been running for quite a while. Simply don't need it anymore, so I'm selling it. Drum has been tapped and sealed with aquarium-grade silicone. Along with the drum you get the two shut-off valves to control flow. All you need is a pump and the remaining tubing to run to your buckets or directly to your tank. The pump I used was a MaxiJet1200.