I’ve installed a Dometic CRX-50 fridge. Yup I finally let go of the propane fridge I’ve been faithful to for 20 years. The install pics may come later, but the fridge vent replacement is now.
Made an aluminum thing that approximates the stock vent dimensions. Has a lid with magnets that correspond to magnets in main body , north south opposed.
I kinda had issues with the magnet placement, you’ll see the marks, but the concept works, a twist on the lid and it comes off.
Inder the lid is a Noco 120V inlet plug. That goes to the fridge ( has an AC power option). If I were to do it again, and I’m probably going to, I’d use larger and fewer magnets, and try not to screw up on the magnet hole drilling!