Part#801020

This shoe looks like our 15-228, which uses either our Series 160 1/2" thick Coil Balances or our Series 165 3/8" thick balances. Measure the thickness of your old coil springs to confirm which you need. For each coil you replace you need to choose a spring weight, which designates the weight the individual spring can support. Look for stamps on the springs that indicate this. If there are none or you're unsure, you need is to obtain the exact weight of the window sash. Give us that exact weight and we will work out what you need.