Tjernlund Crawl Space Air Supply Fan, Model# CS1

5,474.276,224.17 (-12%)

In stock

This Tjernlund Crawl Space Air Supply Fan revitalizes stale air in crawl spaces with fresh outdoor air. U.S.A.



  • Installs on inside or outside passive crawl space vent openings or mounts to floor joists
  • Includes paintable, heavy-duty galvanized steel mounting plate and freeze protection thermostat
  • Works with Tjernlund UnderAire™ crawl space ventilators, Items# 250744, 250745 and 250746 (sold separately)
  • 18in.W x 10in.D x 4in.H.
  • What’s Included

  • (1) Crawl space fan
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