thermaweld+ 7450 Casement




Hello there. Could you show us a photo of the operator in question? A bird's eye view, with either the operator removed from the window or the window open, so that the entire mechanism can be seen, would be best. We will do our best to help you from there.




This looks similar to our 39-375 operator cover, which is explicitly meant to work on Truth's Encore style operators. Truth brand operators, to clarify, are used by many, many different window manufacturers.
To be perfectly honest with you, I'm not familiar with the ThermaWeld window and I don't know whether or not they use Truth brand operators. That's the main reason why we provide this service: going by physical details is always more reliable. That said in this case, I can't quite tell if you have a Truth brand operator or not based on the cover alone.
Would it be at all possible for you to remove the cover and show me a clear picture of the operator without it? As stipulated in my previous response, a bird's eye view from the top down would be ideal, with the window open and the screen removed. That would ensure that we can see as much of the operator as possible without obstruction.
If I can confirm that you have an Encore style operator from Truth, then the 39-375 will work for you.