Replacement sash spring

A home owner from San Diego CA. says:
I have a Dbl hung vinyl window mfd. by Certainteed. Each pane is17x31 in.The spring is stainless & 3/4 in. wide.The spring is attached with a philips hd. screw & has an SA 407 on it.Do you have a replacement part?
User submitted photos of window hardware.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting! First, I'd recommend that you take a look at our S170-407 coil spring. Also see our 15-185 spring covers, our 15-157 balance drum, and finally our 15-192 new-style shoe. You may also want to see our 26-175 pivot bar pair.
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