I am looking for the proper part to replace with balance part for a non-tilting window sash. Can you help? I measured the sash that the channel balance is used for and the length of the sash is 30". I also measured the full length of the channel balance that I have including the plastic end pieces and that total length is 29".
I am thinking the Top winged piece is part number 19-005.
The bottom piece is part number 15-005. The only difference I see is that the bottom plastic piece that I have is 15/16" whereas the 15-005 piece is 1" (from bottom to top of piece).
The weight of the sash that I have is 20.8 lbs.
I am thinking that the Series 380 with the 2640 option will work but I am wondering if I should use a 27" or a 28" channel.