Vantage 1 Single Hung Slider Side Balance Sash Units

A home owner from Seattle, WA says:

I am trying to locate a set of side sash mechanisms for a Vantage 1 single-hung bottom slider window. On the window unit sill tag is 287-N-024. These side mechanisms are actual metal channel length of 13.62" and have the numbers 13 3 and BSI and a small op stamped into the channels. They are the 1/2" width style.

I believe I have narrowed it down to your Series 385 units and hope you could help confirm (the lower shoe is closer to the 1 3/32" deep 15-004 than the 1" deep 15-005). Also, would I order the 13" or 14" length from you for my 13.62" actual metal channel length.

I have attached pictures and would greatly appreciate any help on this - please let me know.

Thanks in advance,
Steve H
User submitted photo of their window hardware.
Profile picture of Paul
Paul from SWISCO responded:
Hello, Steve. I recognize this balance. Neither our Series 385 nor Series 380 will replace this. In fact, yours has to be custom made. That's not a big deal, but before we can get started can you just show me a picture of the metal clip at the end of the cord? Could you also tell me how many you need? Thanks!

As for the top sash guide, our 18-008 looks like a possible match.
A home owner from Seattle, WA says:
Here are 3 pics of the metal clip that is 1/4" wide. I will need only a pair for this one window - is it because the metal channel is 13.62" (as opposed to your 13'/14") long that they have to be custom made? Thanks, Steve.
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Thanks! I have emailed you a custom ordering form for two of these, including price quote. You should receive it shortly.

There are a lot of reasons why these need to be custom made. The most important reason is because the pulley wheels are built into the shoe itself.
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