First off you don't need to use eternabond. Use butyl tape on the bottom side of the vent flange, screw in all the screws and then cover the edges and screws with this:
https://www.dicorproducts.com/catalo...ultra-sealant/
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2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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