27 4 Nl BSI on the sash spring

A handy person from Spring Hill florida says:
January 12, 2017
I ordered 18-008 and 18-009 and neither is a perfect fit the spring isn't fully caught by the guide
User submitted photos of a top sash guide.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
January 18, 2017
Look at our 18-179, which was used by Silverline windows. This could be the top sash guide you need. Just make sure all the dimensions match up.
Top Sash Guide
Top Sash Guide
18-179
$2.20
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