Think window is a MI 3500 vinyl single hung window

A home owner from Saint Simon's georgia says:
August 16, 2023
Can you please ID track shoe and spring. Sash weight is about 20 pounds.
Thanks
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Casey from SWISCO responded:
August 17, 2023

Hello,

Your pivot shoe looks like a match to the 15-180 pivot shoe, which is designed to be used with the Series 190 coil springs. Take a look and compare the dimensions below to yours. 

I would recommend using two S190-540 coils on each side to support a 20-pound sash. We also offer the 15-181 double support and 15-182 busing for this assembly. Thanks for posting!

Alternate image for 15-180
Alternate image for 15-180
Coil Balance Shoe
Coil Balance Shoe
15-180
$3.97
540 S190 Coil Balance Spring
540 S190 Coil Balance Spring
S190-540
$9.74
Double Support Detent Clip
Double Support Detent Clip
15-181
$6.17
Balance Bushing
Balance Bushing
15-182
$1.80
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