Looking to buy replacement parts

A home owner from Bethlehem, PA says:
April 15, 2017
I am looking for replacement parts for my windows. The original balance channel is 24.5 inches in length (Stamped 2420). It looks similar to S351-25 balance channel. I also looking for top sash guides. The original top sash guide looks similar to 18-110 top sash guide.
its a balance
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Tom from SWISCO responded:
April 19, 2017
I'm not sure if the Series 351 is the right match. This comes with the 15-002 bottom shoe, which only has a 1" depth. Yours looks like it is much deeper. Consider our Series 390 instead. This comes with the 15-001 bottom shoe, which has a 1-1/8" bottom depth. It's important to measure your nylon caps as carefully as you can to make sure they are the same size as the nylon caps that come with our balances.
25" Series 351 Channel Balance
25" Series 351 Channel Balance
S351-25
$10.77
25" Series 390 Channel Balance
25" Series 390 Channel Balance
S390-25
$10.55
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