7708CB Garage Door Opener Rail Extension Kit, Other, Regular

Easy addon if your garage is an 8 FOOT GARAGE. Parts inside this box fit perfect to the parts in the garage door box. It is a SHAME that I had to throw away the chain that came with the garage door opener. Seems like a waste. Not a friendly green option. CHAMBERLAIN should have a free return option and maybe even a small credit. No where is it obvious that you need this kit if you garage is an 8 foot garage door. Stumbled onto it when reading the comments from previous Amazonians who purchased the garage door itself.

Me sorprendió la calidad de los materiales, me ahorre una buena lana comprándolo por aquí, su funcionamiento es silencioso, se puede manejar desde el celular, lo puse en un portón corredizo de madera con metal de casi 4 mts tenia temor de que se forzara el motor por lo pesado pero no, de echo en la aplicación del cel te informa si se esta forzando o no y hace un análisis de su funcionamiento.

I followed the installation instructions, everything fit and worked perfectly. Don’t forget to bend the stop tab up before assembly.

Bought a chamberlain garage door opener but required the extension for our larger door. Works perfectly. Easy to install!

Lo compré para poder instalar un motor Chamberlain C2405 en un portón abatible de 5 metros, ya que el motor solo trae 3 metros de riel y quedó funcionando perfecto.