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Heng's Zephyr vent replaces a stock 14" x 14" roof vent lid with a powered version, so you get real airflow instead of relying on the breeze to clear the cabin. The 12-volt fan runs off your RV's battery and is built into a galvanized metal base that resists rust over years of road use.
A straightforward drop-in upgrade for anyone replacing a cracked or non-powered vent lid on a travel trailer or motorhome.
