27 4 IR CALDWELL BALANCE REPLACEMENT

Home Owner from Folsom California
I need a 1/2" wide channel balance to replace my 27 4 IR CALDWELL.  Which balance do I need: S350S351S377S380S385S390, or S395?  I could not tell the difference from the website descriptions.  I've included pictures of the ends of the balance.  I have the weight of the window (sash).  Also, I assume that the window will be difficult to move if I get a balance with the incorrect tension.  Thanks. . . 
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4 Replies
Jasmine
Jasmine from SWISCO
SWISCO
Expert

Your window balance can be replaced with the S350-28. Like yours it has a wingless top guide and a winged bottom shoe. 

For the stamp you can select the 2740 option. Be sure to double check that your sash falls between 19 to 26 lbs. The window would likely be difficult to close with an incorrect stamp option but there is a chance the balance could shoot out of the window damaging the frame or possibility injure you (or the installer).

Home Owner from Folsom California
Thank you for your assistance.  I removed the sash (window) from the frame and weighed it on a bathroom scale.  It weighs 18.4 pounds.  So, should I purchase the 2730 or 2740 option?
Jasmine
Jasmine from SWISCO
SWISCO
Expert

Since the sash weight is 18.4lbs, I would suggest the 2730 option which will support 13 to 19lbs.

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