Top Sash Guide and Channel Balance

A home owner from California says:
January 23, 2020
I'm looking for this piece for my window which was I stalled in 2003 by Designer Sash & Doors which went out of business
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Bob from SWISCO responded:
January 24, 2020

This looks like the 18-073 top sash guide. Now, I can't be certain, but we've noticed a lot of people who purchase the 18-073 also purchase the Series 350 Channel Balance, so start by comparing your balance to that. Focus especially on the nylon fittings. If they do not match up, please post photos of the balance fittings, we'd be happy to research a replacement balance for you. Many thanks. 
Top Sash Guide, Fiberlux
Top Sash Guide, Fiberlux
18-073
$1.32
22" Series 350 Channel Balance
22" Series 350 Channel Balance
S350-22
$9.91
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