I have a 2018 Cruiser Aire 28rl. We have had an ongoing issue with the seals tearing. Fortunately we were under warranty. After multiple replacements, our service writer worked with manufacturer and determined that the slide was too large for the hole in the side of the unit. the walls were too close to the side and would pinch the seals. They removed the slide and cut it down and then reinstalled. I have had no more tearing since then (on that slide). It is amazing what difference one half inch made.
I have not tried to replace any myself, yet, but have watched several You-tubes on it. On mine, seems the most difficult will be removing all of the sealant to get to the screws.
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