Ultimate Dryer Vent Seal
Medium to large gaps. Webhow to seal a dryer vent pipe: For filling larger vent gaps, foam is the best choice. Webthis 4 dryer vent seal has a floating shuttle that stays closed unless there is a load of clothing drying. You can easily use the exhaust vent for new.
A positive seal keeps cold or hot air out as well as unwanted pests.
