Pella casement window sill assembly replacement

A quick learner from Evergreen, CO says:
Hi,
We have older Pella casement windows. The # on the window is 803. I have included a photo of the window. The plastic strip around the window was broken and cracked and needed replacing. I've looked at the weather striping on your site but don't see one like the one we have.
Thanks for your help.
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Casey from SWISCO responded:

Unfortunately, we do not have an exact replacement. You may want to consider something like our 58-055. I know it looks different, but it looks like this installs the same way, at least. Review the dimensions below to see if you think that this might work for you. If not, your best bet would be to reach out to Pella directly to discuss your replacement options. Thanks for posting. 

Profile view of 58-055
Profile view of 58-055

Identifying Replacement Weatherstripping
Identifying Replacement Weatherstripping
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