Window Spring

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Handy Person from Chesterland, OH

Sep 25, 2025 11:50 am

These Springs are 22" Overall X 5/8 Deep X 1/2 Wide They support a 10 lb Window. I would like 6 of them. Thanks Bob

2 user uploaded images

4 Replies

Emily from SWISCO

Oct 1, 2025 11:05 am

Hi there!

Thank you for reaching out to us, Bob. Your balance looks like a match for the Series 351 or Series 390, depending on the depth of the bottom shoe. Can you confirm the stamp printed on the balance, as well as the length of the metal channel?

Comparison of the S351 and S390 balance shoes.

Handy Person from Chesterland, OH

Oct 1, 2025 11:30 am

It is 1 1/8 so "Must" be 15-001

The length of the metal (Only) is 21"

20 30 is stamped on it

Thanks, Bob

Emily from SWISCO

Oct 1, 2025 11:47 am

Thank you, Bob! In that case, you'd want the S390-21 with the 2030 stamp option. You can place an order directly on our website at your convenience.