Identify balance needed

Question

I have a window that is missing the channel balances. It is a single hung non tilt window, the sash measures 29" tall and weights 21 lbs. The channel is 1/2" deep. Can you help me identify which balance series I will need. Thanks.

Bob · Accepted Answer

Can you tell me the height of visible glass in the window sash? Can you also remove a balance from an identical or similar-sized window in the house and show me pictures of the nylon fittings on either end? We'll do our best to narrow this down from there.