"Of the first 3 units, one was welded at an angle other than a right angle and fouled the cabinet side and 2 welds came adrift in second one prior to installation. Of the 2 replacements, one was fine and the second had 2 failed welds. These failures were prior to any use. Amazingly poor construction but makers say they have no record of other failures with this product. Hard to believe. BUT Screwfix replaced without argument. Only my time wasted - assuming the "normal" ones don't fail in use."