The 5" vent cover purchased from home depot heating department is a perfect
fit for the fridge vent fits snug on the inside of the rubber gasket. I added
two footman loops (like the ones on the luggage rack) on each side of the
fridge vent and two on the front of the vent cover then secured with Velcro
wire wraps. Have driven many miles and through a car wash holds up great and
under $10!
Frank
82 Westy diesel
Trenton, NJ