fantech® Fixed Non-Ventilated Curb, 16-1/2 in Inside Square, 19-1/2 in Outside Square, 8 in Height, 27-1/2 in Flange, Steel, Galvanized, For Use With: REC 8..10 Commercial Fan

• Fixed non-ventilated curb manufactured from heavy gauge galvanized steel
• Corners are welded construction
• The curb features fiberglass insulation that deadens sound and minimizes heat loss
• The unit equipped with shutter flanges and 11/2 in and a wood nail

• Specification Sheet https://assets.unilogcorp.com/267/ITEM/DOC/Fantech_471062_Specification_Sheet.pdf