spring for 32 x 16.5 window

Question

Window sash is 32 x 16.5 and weighs 13.6 lbs.
There is one spring on each side is the sash.

Paul · Accepted Answer

Based on your photo and sash weight, I think you could use our S150-7 coil spring. You may want to remove your old coil spring and check to make sure the Series 150 is a match, and that you have some kind of #7 marking on the spring.