"Hard to see how the previous reviewer couldn't get this to seal. It has an 'O' ring which (if it isn't overtightened) should give a reliable seal with no need for any PTFE tape or other sealant. Easy to fit and for me150W gives enough heat in a 500 wide x 1000 tall flat towel rail without running up too big an electricity bill!"
"The Tee-piece was fine, but the element's thread was rough and the burrs needed filing off to enable it to screw freely/fully into place. The o-ring was then able to seal properly. The built-in thermostat seems to be opening 'early' at <60C when fed by a Dimplex controller on max-but ok so far on reduced setting but not as warm as original. Makers Tesla have been informed."
"Fitted with new towel rail and failed after 12 hours, replaced without fuss by screwfix and the second one failed again inside 12 hours. 3 fits and travelling expenses along with an unhappy customer makes this product a no no. I would like to say screwfix were very helpful and refunded without any hassle."