I need coil balance parts

Question

I believe this is a double coil system, I just need to order the correct replacement parts.  This window has KVW initials on it. There are 3 windows that have all the same parts

Casey · Accepted Answer

Hello,

Your pivot shoe appears to be a match to our 15-177, which is compatible with the S152 coil balance. As for the coil spring tensions, see the S152-4 and S152-6 based on the stamps shown in your photos. Thank you!

Alternate image for 15-177