The metal portion is 1/2" plus a bit (9/16?) wide and 28" long.
The number on the side reads 2740
Your Q/A on Alenco seems to I.D. replacements for these very units. But your expert eyes will determine if that is correct so Thank You ahead of time.
Right now we have only ONE channel balance in most of the windows so it's not a wonder why they don't work properly ... duh
Teri
