I bought this as a secondary tank for a small air compressor I got a few years ago. I am very satisfied with the quality of this device. The price wasn't bad either. I don't want leaky fittings so I wish this unit had o-ring fittings instead of tubing, but everything there seems to use tubing. I'll take some pipe sealant to fix this issue (my issue is with the fittings in general, not this tank).