"There are to many poor reviews of this product. Fortunately the positive ones are now catching up. I recently installed 3 of these under the same sink, on each of the outlets while tidying up a messy installation. Two of which went on to old strainers, and one that went onto a brand new one. I had absolutely no issues with any of them. My trick was to unpack them, unscrew the trap and add a small amount of silicone grease to the thread and o ring, and give them a firm nip by hand. They sealed perfectly and i had no leaking at all. But then again, none of us qualified engineers using these have had problems ;) ... I've had no trouble with any floplast gear i've had over the years. You've just got to know what you're doing."
"I have bought quite a few of these traps as they are telescopic which gives you the ability to place the trap where you need it up or down a few inch's which on a new fit is quite good but as a replacement part on an existing basin pipe work they are more than handy. They are easy to fit but one word of warning, make sure that the bottle part at the bottom is screwed up tight because sometimes out of the bag they are a little loose and will let by, not a bad thing by any means and easily rectified by a firm twist. Price wise these are a bargain, would I recommend this product well the answer to that is yes its that simple"
"Bought 2 of these. No problem fitting trap and no leaks. However 1 of them was a 40mm size even though it said 32mm on the bag label. Got it exchanged no problem but when they checked their stock 9 out of 12 were also wrongly labelled. So save yourself a return trip and check what size it actually is inside the bag before you leave the counter."
"Reading some of these reviews you would think this trap had problems it doesn't. It is most probably the user. Care needs to be taken with ensuring the sealing ring is in the right position and tighten ensuring it isn't cross threaded."