Hybrid Balance Quote Request

A handy person from Florida says:

attached is a photo of the lift replacement needed. The distance from each extremity white tube is 31 1/2". The lower panel sash on lift is 51 x 3

Balance length: 31-1/2"

Balance stamp: 31-61

Balance color: white

Quantity: 2

Are my balances the right strength? I think they should be stronger.

Thumbnail of the uploaded file named IMG_0642.jpg
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Bob from SWISCO responded:

Thanks for posting. Is there any particular reason you think your balances should be calibrated for a heavier sash weight? Did you ever have trouble opening the balances or keeping them open prior to the windows failing? If not, then I think the calibration of 31-61, which indicates your 31-1/2" balances are tensioned to support a 61 pound window, are accurate. If you're uncertain weigh the sash to confirm its exact weight and let me know. Otherwise, I just sent you an email with a purchase link to order a pair of 31-1/2" White Hybrid Balances, stamped 31-61. Let me know if you have further questions. 

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