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Ventilation Systems Accessories
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WhisperComforts FV-WC04VE1 polypropylene wall cap accessory with Styrofoam adapter conveniently allows both exhaust (from the right) and supply (from the left) airflow through a single 5.5"-5.75" penetration in the building envelope. Due to the dividers inside of the unique Y-shape chamber and the new wall cap, cross contamination is prevented.