I have the Mann lake 18/9 and it works great. A lot of people say it is not strong (as opposed too a thicker walled maxant). WELL just today (5-13-13) I was driving down the road in my pickup, minding my own business, when at around 58 miles per hour, I noticed my extractor doing a triple Lindy in the rear view mirror. When I got out of the truck and looked at her I was surprised to find that it only had one bent leg and One dent in the upper rim of the tank. I went to the shop and took the leg off and bent it back and then I took out the basket and used a hammer and a couple blocks of wood to take out the dent in the rim... Works good as new. it seems pretty strong to me... :) The guy behind me sure mad...