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The LAMBRO INDUSTRIES 1423BL is a 4-inch plastic wall exhaust louvered dryer vent designed to prevent outside elements and air from entering when not in use. This wall cap features opening and closing flaps that seal the vent opening, allowing exhaust air to exit through a 9.9 square inch net-free area when the fan operates. Its low-profile design protrudes only a half inch from the sidewall, making it suitable for new and replacement installations over existing 4-inch openings. Made from polymer resin with a UV additive, it resists premature fading and is paintable.
Low-profile 4-inch wall cap with louvered flaps for dryer, bath fan, and general exhaust.
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