Need 30" window channel balances (9/16" wide)

A quick learner from California says:

I need to replace 30" window channel balances (1/2" wide, 2940 weight rating). I couldn't discern the part number for the upper and lower plastic clips from your website. I have attached pictures with measurement. I will appreciate if you can suggest the right part numbers.

User submitted image of their window hardware.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for contacting us, Yogesh. We will be able to replace this balance, however due to the unique nature of the attachments it will have to be a custom order. Thanks to your extremely helpful pictures, we have all the information we need to get started! I would be happy to send you a price quote and order form for you to review, but before I do can you just tell me how many you need? Please note that there is a minimum purchase quantity of 2.
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