Plastic pieces at bottom and top of door

A home owner from Tampa FL says:
December 4, 2023
There is a small square plastic piece at the bottom and tops of our sliders. The pieces on the bottom fit over the adjustment screw on each "pane" and have a notch for the track and essentially act as a bug barrier. The pieces on the top have an "L shaped" brush that runs along the track. Our house was built in 1996 in Tampa FL so I have no idea the brand of the door. They are triple sliders that slide open completely, stacking on top of each other on the outside wall as they are opened. We will take one off soon to identify the rollers so we can replace those but I'm just not finding any of these small brackets which need replaced as well. I can send a pic!
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Dave Sr. from SWISCO responded:
December 5, 2023

Hello! We do carry the 86-010 top guide and the 86-026 bottom guide used on patio glass doors. However, yours look like they were not "factory" made. The guides look like a piece of plastic that was cut and drilled to fit the door. Review the specifications for these parts and see if you think you could adapt one to your door. 
Crown/Lawson Guide
Crown/Lawson Guide
86-026
$0.99
Patio Door Top Guide, Crossly
Patio Door Top Guide, Crossly
86-010
$0.78
Slider Slicker Track Lubricant
Slider Slicker Track Lubricant
75-077
$3.97
SWISCO 75-077 Slider Slicker Track Lubricant
SWISCO 75-077 Slider Slicker Track Lubricant
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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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