"Im not a great fan of Screwfix traps, they look and feel abit too cheap! The trouble with this trap is that when fitted to a screwfix slotted basin waste the trap is too small and it moves inside, which means it takes a couple of attemts to get it to seal 100%... A mcalpine trap would fit a treat with no worries of dripping! Once installed correctly it should last as long as any other tho... =]"
"The rubber seals supplied with this part are too small and can move around within the fitting. It took three attempts to get a good seal and then two weeks later it was leaking again. Replaced with a better quality part that sealed first time and has given no problems since."