My issue with plastic tanks are the dimensions which differ some between manufacturers. I have clearance issues to get them to slide under the rear deck. Point is, make sure they’re gonna fit where you need them to. I have no favorite manufacturer. If you’re buying new, some of the caps are not venting like they should and the tank is pulled into a vacuum and looks collapsed. A replacement cap will change and fix this. I’ll see if I can get the info on the replacement caps.
Creativity is just intelligence fooling around