help identify channel balance

A home owner from Florida says:

35 inch long metal piece. Stamp says 3450 39. One channel balance on each side of the window. As the pic shows.

Can you help me figure out the replacement part number?

The handyman couldn't find two balances exact the same, and he said one of them didn't have enough strength for our window. So probably that is why it is failing now.

So probably the stronger one is the correct one. Can you help me figure it out?

Also, do you have the item number of the take out clip that is compatible with it? Mine has a length of 1.25 inch. One of them is missing.

Thanks!

Thumbnail of the uploaded file named Channel Balance 35in long 3450 39.jpg
Thumbnail of the uploaded file named another stamp.jpg
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Jasmine from SWISCO responded:

Thanks for posting! Your balances appear to be either our S351-35 or S390-35 with a 3450 stamp. To determine which series you need, confirm the measurement for the depth of your bottom shoe. It should either be 1" or 1-1/8".

Comparison of the S351 and S390 balance shoes.
Comparison of the S351 and S390 balance shoes.

The takeout clip you are searching for is likely the 16-002. Again, compare the dimensions to confirm that this is the right fit.

Alternate image for 16-002
Alternate image for 16-002

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