Tjernlund RV2 Radon Ventilation Fan for Ventilated Crawl Spaces (1);

Self contained, requires no connection to PVC. Effectively reduce Radon levels of 10 pCi/l or less in crawl spaces. Installs behind existing passive vents. Pulls fresh outdoor air from passive vents on opposite wall to dilute crawl space Radon levels and moisture. Uses only 40 watts to ventilate a 3 foot high, 800 Ft² crawl space 5 times/hour. 6’ power cord. 18” wide by 9” high faceplate.