Sliding Patio Door Part - Stationary Bottom Rail Filler?

A home owner from San Diego, CA says:
Hi, I'm looking for the bottom rail filler to a sliding glass patio door. 2 of my patio doors have this vinyl(?) piece warped and need to be replaced.
Each piece is 1.5" wide x 1" deep/thick. Do you carry a similar piece in stock and if so, in what lengths?

Also, do these just snap into place or will I need to glue/silicone/caulk these pieces in the track?

Thanks in advance!
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Casey from SWISCO responded:

Hello,

If you're referring to the patio door track, take a look at the 80-106 or 80-102 track cover. If you need a new threshold, unfortunately, that is not something that we would be able to supply. Take a look at these parts, as well as the related videos. Thanks for posting! 

How to install a sliding glass door track cover
How to install a sliding glass door track cover
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How to Replace a Patio Sliding Glass Door Roller [1080p]
How to Replace a Patio Sliding Glass Door Roller [1080p]
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How to Replace a Sliding Glass Door Track
How to Replace a Sliding Glass Door Track
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How to maintain a sliding glass door
How to maintain a sliding glass door
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How to replace a sliding glass door roller
How to replace a sliding glass door roller
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