Rotopax has clearly put a lot of thought into their system(s). Expensive, but made in the USA which is important to me, and I accept the higher price. When I was done with my installation I wound up with an easily accessed water storage system of which 2 of these mounts were a part. My only complaint, and the reason I gave this 4 stars, is that with my arthritic hands there is no way I can tighten the handle adequately, let alone loosen it. Perhaps the DLX mount would be easier. That said, I made a wrench to deal with that. Problem solved.