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.FV-WC04VE1 combines optimal function, minimum building penetration, and stylish design Conveniently allows both supply and exhaust air to pass through a single 5-1 2-Inch exterior penetration Y-adaptor connects to the 4-Inch diameter supply and exhaust ducts and transitions to a single 5-1 2-Inch diameter exterior wall cap Unique Y-shape chamber prevents cross contamination Compatible with Panasonic FV-04VE1 WhisperComfort Spot ERV Ceiling Insert Ventilator with Balanced Ventilation and Patent-Pending Capillary CoreColor: White Diameter: 5-1 2, 5-3 4 Type: Wall Vent
