Replacement track for sliding glass door

A quick learner from St Petersburg, Florida says:
I have a triple sliding glass door each 5 feet wide and 8 feet high. The bottom rail plate is badly corroded and needs replacing. I need a piece that's 178.5 inches,

The manufacturer was NU AIR, or so I was told.

User submitted photos of patio door track.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
I don't think you can still get this track for your patio doors. We do have the patio door track rail, the 80-105. I'm not sure if you can adapt that to your door, though, so I would suggest locating a local glass shop in your area and see if they can supply.
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