57 Chevy Fresh Air Duct Vent Flutter Valve Seals.
The seals are specialized gaskets used on 1957 Chevrolet passenger cars to seal the flapper/flutter doors inside the vehicles fresh air ventilation tubes. These seals are essential for proper airflow management and cabin comfort. They seal the gaps around the vent doors to block outside air, exhaust fumes, and moisture from leaking into the cabin. Used on all 57 Chevy Car & Wagon Models. Made in the USA.
