"Bought these during a Toilet refurbishment. The old screws are usually rusty and the old seal generally moulds itself to the lower fitting, so that if you try to reuse it, it will leak. I usually buy this this kit, as well, if you need to replace the operating mechanism. The cost is minimal compared to the hassle you get if you try to re-use the old parts."
"When you replace any flush system always remember to replace the coupling kit specially for what it costs. You have to take off everything anyway so why wouldn't you replace it to possibly have to do later on when the screws rust through and end up breaking possibly causing a leak."
"We were called to an emergency in remote Porth near Pontypridd , needed the coupler as the other fell apart and we couldn't loosen the butterfly nuts. Tried the nearby large merchants first, they did not have the coupler kit, drove a little further to Treforest and the kit required was there in stock, magic stuff. Great piece of kit, no problems at all and most importantly no leaks equals a happy customer! Thank you Screwfix!"
"I bought this coupling kit as an after thought when buying the bottom entry valve and Flush Siphon. Just as well that i did because when i dismantled the cistern i found that the existing one was rotted away with rust. Easy to assemble and fit and no worries for another 10+ years."
"These are great quality replacements. The only small problem I sometimes have is that the rubber seal can be a few millimetres thicker than the one that comes off. This makes the holes for the screws in the cistern a little bit out of place but nothing that cant be worked around."