Tilt channel balance

A quick learner from Pennsylvania says:
My client has tilt window balances that anchor at the top with a hook. Stamp reads
27 HD d
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Paul from SWISCO responded:

We should be able to replace this, but we need a bit more information before we can suggest a replacement. Can you tell me the width, height and length of the metal channel? Can you also show me a photo of whatever attachment was at the end of the cord? It should be a hook or shoe of some kind. Finally, please give me the exact weight of the sash.

A quick learner from Pennsylvania says:
Tilt channel balances
28" long 1/2"wide 1/2" tall
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Paul from SWISCO responded:

Thank you! That pivot shoe looks like our 15-105. Your balance looks like it attaches to it using a hook like our 62-105.

We can custom make a Series 770 balance but with the bottom terminal clip swapped out for the 62-105 hook. Does that look good to you? We'd also use the 28C option for sashes weighing 18 through 23 pounds. You may want to weigh your sash to confirm this is accurate.

If this setup sounds good to you, let me know how many you need and we'll email you an order link and price quote for that quantity.

A quick learner from Pennsylvania says:

I need to buy two of these balances first to see if they work. I will buy more if they do. Please give me a price.

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Tom from SWISCO responded:

Sure, I'll email you an order link and price quote for 2 right now. 

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How to remove window pivot shoes
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Anatomy of a tilt window
Anatomy of a tilt window
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How to replace a tilt-window channel balance.
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