Hi,
I believe that I need the 27 inch Series 377 Channel Balance. Please confirm, plus, the marking 23 - 3 W, I do not know it will correspond to which number. Please advise.
I have two windows like this, which means that I will have to get 4 Nos of the Channel Balance with the accessories on both sides?
I plan on replacing the Channel Balance for 12 Windows in the house.
Awaiting your reply.