I just installed a Vapor Trapper charcoal canister (https://www.vaportrapper.com/) above the tank and vented through the floor outside. This was done to reduce or eliminate the gas smell in the garage. Instructions state that the gas cap must be non vented, which makes sense to force fumes through the canister. I can find non vented caps for the sedans but having trouble with one for a truck.

I am hoping someone here has information on an exterior non vented cap for the truck. or able to point me towards a resource that can assist.

Thanks, Joe