IDENTIFICATION OF PLASTIC TOP SASH GUIDE

A landlord from hawaii says:
August 12, 2016
My channel balances are s385 but I am unable to identify the top sash guide. they seem to be worn on the retaining lip and some of my channel balances have slipped by the top sash guide and gotten stuck in the raised position when the window was lowered. please help. thanks
User submitted photos of a top sash guide.
Profile picture of Tom
Tom from SWISCO responded:
August 16, 2016
Hello! I think you could use our 18-171 as a replacement top sash guide. The top part is a little tall, but if it gets in the way you can always cut it down.
Stepped Sash Guide, Alpine
Stepped Sash Guide, Alpine
18-171
$1.35
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