I have a 2019 Aria 3901 and light pours in under the two large slides. I bought 10 large sponges and when we stop, I put these in the holes under the outside of the slides. When we break down, I make sure I remove them all. I am just trying to keep mice and other creatures out of the RV as we also are full timers and choose not to have gaping holes into our home.
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Dr. Terri Edwards
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