Through-the-wall ventilator can be installed in outside walls from 5-1/4″ to 10″ thick. Quick, easy installation. Includes polymeric interior grille, exterior louvered wall cap, fan, flexible aluminum ducting, and built-in bird screen. Housing 6″ diameter, grill 8″ diameter. 70 CFM, UL listed. No. 512M: CFM (cubic feet per minute): 70 cfm, Housing Diameter: 6″, Wall Thickness: 5-1/4″ To 10″, Grill Diameter: 8″, UL Listed: Yes, Pkg Qty: 1, Package Type: Box
