At least a thousand feet, or however long you want I guess. That's probably a fairly subjective thing, since it will not likely impact effectiveness of the vaporizer. I could be wrong though and often am, ask my wife.
8182KSKUSH Reviewed by 8182KSKUSH on . tubing Bout to buy some longer tubing at home depot what length do you guys suggest? I thought the tubing that came with my hotbox vapor was rather short. Rating: 5