Sea Monkey Crawlspace Ventilation Fan 220 CFM with Humidistat and Thermostat, Dual Fan Crawl Space Vent Fan with Humidity and Temperature Auto Control, Freeze Protection for Basement Garage Attic

★★★★★ 4.2 140 reviews

$59.99
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Product details

Management number 213630367 Release Date 2026/04/12 List Price $24.00 Model Number 213630367
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  • 【220 CFM Powerful Dual Fan Airflow】Equipped with two high-performance fans featuring hydro-mechanical stator blades, this crawlspace ventilation fan delivers 220 CFM airflow to effectively circulate air in crawl spaces, basements, and enclosed areas up to 1,100 sq ft. The stator blade design transfers air farther even in high static pressure environments while maintaining quiet operation.
  • 【Built-in Humidistat with Auto Humidity Control】The integrated humidity sensor continuously monitors moisture levels in real time. Simply set your desired humidity threshold (20%-80%) using the humidity control knob, and the fan automatically activates when humidity rises above your set level and shuts off when it drops below, helping prevent moisture and moisture damage without manual intervention.
  • 【Freeze Protection with Automatic Thermostat】The built-in temperature sensor provides automatic freeze protection by shutting off the fan when the ambient temperature drops below 35°F (1.7°C) and reactivating it when temperature rises above 55°F (12.8°C). This prevents the fan from operating in freezing conditions, protecting both the unit and your plumbing from cold weather damage.
  • 【Easy Installation for 5.5" x 15" Register Holes】Designed to fit standard 5.5" x 15" foundation vent openings, this crawl space fan installs quickly with the included mounting hardware. The overall unit size is 18" x 9" with a 4-foot power cord for flexible placement. Simply plug into any standard 110V outlet - no additional wiring or transformer required for immediate operation.
  • 【Versatile Indoor Ventilation Solution】Ideal for crawl spaces, basements, garages, attics, laundry rooms, bedrooms, and other indoor or semi-enclosed areas. The adjustable speed control knob allows you to set the fan speed from low to high based on your ventilation needs. This vent fan helps improve indoor air quality by promoting air circulation and reducing excess moisture buildup.

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