Non-Tilt Window Channel replacement - Please advise the appropriate matching part to order

A quick learner from California says:
June 3, 2016
Hi there,

I'm looking for a non-tilt window channel replacement but uncertain which product would match the top and shoe of the one for my window (see attached pictures). The existing (broken) channel has the following markings "28 3 GX CMC 11" -- Measurements as follow:

1/2" Wide Channel Balances
29" Length
Top attached: ?
Shoe attached: ?

Any help you can offer would be greatly appreciated! --Cindy
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
June 6, 2016
See our Series 385 channel balance, this looks to be a close match.
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