Economical ventilation with these new 8mm Polycarbonate Vent Windows.
• Ideal for greenhouses, hog confinement buildings, barns, or any building where ventilation is desired.
• 40" x 40" vent windows are available in either sliding style, or pivot style.
• Constructed from 8mm polycarbonate for ideal light transmission.
• All aluminum frames offer superior weather resistance.
• Vent windows come pre-assembled for easy installation.
• Designed to fit perfectly between the 4' rafters in your greenhouse or wood structure.
• For Pivot Style Windows, we suggest installing our Solar-Powered Vent Opener, for automatic climate control. No electricity required for superb ventilation, no matter where your building is located.