Jager is made in germany by eheim. I guess that they where aquired. They might still use the Ebo-Jager label for original models or they are left over? I'm not sure but they are the same. Many manufactorers are makeing the fully submersible ones now, but still sell non-submerssible. I have never used an Ebo-Jager but have heard nothing but praise for there accuracy. And the price ain't bad either.

Whatever it is, Jagers are top-notch heaters. Can't get better than them.

I purchased 4 Ebo-Jager's 12+ years ago and they are still in my 240 gallon reef system and work beautifully - I occasionally take them out and soak them in white vinegar to breakdown the coraline algae buildup - and back in they go... never had a problem with one.