1 Set Of Stainless Steel Crawl Space Basic Fan Ventilator With Built-in Dehumidifier silver

Description

Exhaust : Dimensions L x W x H: 18” x 9” x 2”. Seven-blade AC axial flow fan. Built-in dehumidifier design: (20%-80% RH range). Noise: dB level 45-57. Measure the size of your crawl space vent before purchasing. Functions: It helps to reduce the radon level in the crawl space, because the radon (density) is heavier than air, and the radon will settle on the lower floors. Material: stainless steel 304 grade panel and shell, can extend the service life in humid environment.