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Review title: Worthless
Product review: I got this to tighten my 6" ducting onto a filter. It was worthless. It would never screw tighter due to the end being warped so I removed it and used pliers to make it flat again and the same thing happened once it got to the same spot. I went to the local hydro store and got much higher quality ones for about the same price. I'll definitely not be buying another one of these.
