300 CFM Crawlspace Ventilator Fan with Humidistat, Stainless Steel Exhaust Vent
Superior Design: AlorAir crawlspace ventilator fan made of stainless steel with IP55-rated fan blades, highly resistant to liquids and dust, rust-proof and durable. Power cord length: 6ft. When it detects that relative humidity is higher than the level you set, the fan starts automatically.