16 inch long 1/2 wide

A home owner from Arizona says:
January 23, 2021
16 inch long 1/2 wide

One of the black parts is broken and one of the bottom almond/white parts is broken. I don't see any part numbers on either of them. The metal channel sash balances says 1520 and then a symbol that looks to be AT in a circle then a trademark symbol then HR. Trying to identify which parts I need to buy to fix the window. Appreciate the help.
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Bob from SWISCO responded:
January 26, 2021

I believe your channel balance is our S395-16. Compare to confirm. You'll need a stamp option of 1520. For the Top Sash Guide, see if our 18-009 matches up. This replacement lacks those bottom tabs, but we don't believe they really matter much, so if the dimensions otherwise align, we think it should work for you.
5/8" Top Sash Guide
5/8" Top Sash Guide
18-009
$0.99
16" Series 395 Channel Balance
16" Series 395 Channel Balance
S395-16
$9.34
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