I believe these are old MI or Alcoa windows
3050 call size, sash weighs approximate 35 lbs
Coil balances
Quick Learner from Myrtle beach
Sep 24, 2025 1:16 pm
2 user uploaded images
2 Replies
Jasmine from SWISCO
Sep 30, 2025 3:35 pm
Thanks for your post! Your balance shoe is a match for the 15-111 Pivot Shoe. While I am confident this is the right replacement, be sure to remove the shoe and carefully compare the dimensions.
The compatible pivot bar is the 26-241.
Alternate image for 15-111
This shoe is typically used with with the 1/2" wide Series 160 Coil Balance. To confirm this is the right series, be sure to double check the width of the coil spring. You'll need (4) S160-09 to support the 35lb sash. For the cover, you'll need the 15-150D Coil Double Support.
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