Easy to install on AO Smith water heater. The elements are a little longer, and not copper, like the original- but it still fits. Finally HOT WATER AGAIN! I also had a ton of buildup in the bottom of my tank, and it was only 5 years old... so far on day one it’s a good purchase. It is cheaper at Home Depot and Lowe’s though.... I did not use the thermostats yet, but saved them to use if I ever need them.This kit is a tremendous value for fixing our A O Smith ELC 5O 200 electric water heater, with APCOM style thermostats. Ours had a burned out lower eliment, and this kit allowed us to simply replace every electrical component in the water heater, and put it back in 'like new condition' again.After being without hot water for a couple of days, finding this product was a saver. The install was very simple, wiring hooked up just as the old did. The circuit blocks are simple yet very affective. And resetting the temp control very easy. Do be cautious when setting the temps, you will get burns if you don’t read the proper settings. I would recommend this product.Has everything you need to repair the hot water heater. This kit is half the price of individual parts. All the parts can be replaced in less than an hour by a novice. I also ordered the socket removal tool which fits perfectly. An ordinary socket will work if you have the right size.With the proper tools, this product made me look like a pro. Saved myself over $600 from an A list plumber. The price of the total kit was cheaper than one element from the local home improvement.Great price,plug and playI tried to change my heating element at least once every year since we have very bad quality water. This kit is very affordable and contains everything I need.We bought this after our hot water heater kept throwing the switch. A couple of months earlier we had paid a plumber $100 to fix the same problem, but it recurred almost immediately. My husband put just one of the heaters in, and we haven't had the issue since. Rats on that plumber!No es de la misma marca que mi calentador pero resultaron compatibles, muy buen precio comparado con otras opciones y hasta ahora funcionan a la perfección, es importante comprar la herramienta para instalarlo, lo facilita muchísimo y se hace el cambio en unos minutos.La calidad muy bien y el juego hace todo mas accesible para la instalación y su mantenimiento se recomienda .ok