andersen narroline balance box

Hello,

I need to know which andersen narroline balance box to order. my window is 32 W X 46 H. the upper window pain is 32W X 23 H and the lower pain is 32 W X 23 1/2 H.

Note that there are two screw holes with plastic bushings in the middle of the box. The pictures of the balance boxes on your site do not seem to have these holes. The pictures of the balance boxes on your site also seem to have a tab on the end. Mine does not have this. the box it self is aproximately 6 X 3 X 3/4.

I have attached a picture of it installed in the window. As you probably know, it is half covered by the wooden molding in the picture.

Thanks
Tom

The only numbers I could find were

cc 7 27 66

Thanks
Tom