Missing in patio door

A quick learner says:
What is this part called. Missing in the door and needed in order for door to lock. Thanks
Thumbnail of the uploaded file named webcam-9/30/2022, 10:12:18 AM.png
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Tom from SWISCO responded:

Hello! This keeper looks like a good match for our 89-029. Check it out and let me know if you agree, or if you had any questions!

Alternate image for 89-029
Alternate image for 89-029

A home owner from Hawaii says:
What is the difference between 89-029 and 89-041. Thanks
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Tom from SWISCO responded:

The difference between those keepers is a matter of width and depth. You can review the 82-041 dimensions below.

Dimensions for 89-041
Dimensions for 89-041

A quick learner from Springfield, VA says:
I need this exact patio door keeper part as well, but I need it in a 3.5 inch length instead of 2.5 inch. Can you help me?
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Tom from SWISCO responded:

We unfortunately don't sell a version of this keeper at that length. Is the hole that takes the mortise the same size? If so, our parts may still work for you. Overall length doesn't matter so much as long as the installation holes, mortise hole, and depth match up.

A quick learner says:
Thank you for this info! Yes the hole is the same size, so I was able to just install that.
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Tom from SWISCO responded:

Great! Thanks for the update. I'm glad it worked out in the end.

Please let me know if you had any other questions and I'd be happy to advise.

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