Channel Guide ID 26 4 FV CMC 7

A quick learner from Castle Rock, CO says:
Trying to confirm which series Channel guide I have. Looking to order two for a non-tilting window, not sure of Brand name, vinyl. The markings on the channel guide I have are blue ink numbers: 26 4 FV CMC 7
There is no metal stamped indented number that I can find on the aluminum. It measures 27" x 1/2". It seems that the pulley system is jammed up, but would rather replace entire piece as I don't know if I can take it apart without breaking more of those small pieces. It looks alot like the 27" S380 with a 19-005 or 19-002 top and 15-005 foot. The only difference I can see is the channel balance top is not exactly like either you have in catalog.
user submitted photo of channel balance
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Paul from SWISCO responded:
Good Afternoon,

It looks like you have a channel balance with the 15-004 shoe and the 19-005 top.

Take a look at those two parts mentioned above. If they match your current balance attachments you are going to need a S385-27 with the 2640 option.
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