Window balancer

A handy person from Lake Geneva says:
Hello I need help picking out a window balancer. I have ordered three 2 from here and one from another place none have fit. The markings on the broken piece is +DB27HD.
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Thumbnail of the uploaded file named image.jpg
Thumbnail of the uploaded file named image.jpg
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Casey from SWISCO responded:

Hello,

I would recommend starting by comparing the specifications of the S751-28 channel balance with a 27HD strength option to an undamaged balance assembly. Thanks for posting! 

A handy person from Lake Geneva says:
I have ordered those pieces and it is to big.
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Casey from SWISCO responded:

Could you elaborate regarding exactly what part of the balance is too big, as well as confirm the exact dimensions that you need? 

A handy person from Lake Geneva says:
The bottom plastic piece is the part that is to big.
A handy person from Lake Geneva says:
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Casey from SWISCO responded:

Could you confirm the exact dimensions of an undamaged knife lock shoe compared to the measurements shown in the diagram below? Thank you. 

Dimensions for 15-014
Dimensions for 15-014

A handy person from Lake Geneva says:
The dimensions of the existing shoe balance are width -1/8in
, height 1/2 in, and length is one in.
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Casey from SWISCO responded:

Unfortunately, we have not been able to locate a replacement knife lock shoe with the dimensions you've provided. If you'd like to send back the balances you've purchased so far, our return policy can be found here.

I'm sorry that we won't be able to assist with this repair but please let us know if you have any other hardware questions. Thanks for posting! 

How to install a ribbed tilt channel balance with knife lock shoe
How to install a ribbed tilt channel balance with knife lock shoe
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