Best Comfort 20 In. 3-Speed Silver Industrial Wall-Mount Fan APS Spring-loaded back draft damper and

Spring-loaded back draft damper and bird screen keeps out unwanted outside air and critters

Foam panels insulate and reduce noise and vibration

and convenient bottom load magazine make this tool a true workhorse capable of tackling even the biggest jobs

water-based finish has low odor and will not yellow with age

Best Comfort 20 In. 3-Speed Silver Industrial Wall-Mount Fan APS Spring-loaded back draft damper and20 inch industrial, high velocity wall mount fan. Features 3 speed settings with pull chain control. Metal construction with 3 metal blades and full metal guard. 6 foot power cord and black wall mount bracket. 3800 4250 4725 CFM (cubic feet per minute).