Witten 306MGR Energy Saver Auto Foundation Vent, 8 x 16, Gray

Highlights:

• Size : 8 x 16
• Color : Gray
• Material: Thermo-plastic
• With automatic damper
• 65 square inch net free area
• No electrical hook-up required
• Replaces old-style manual vents
• Fits standard 8 x 16 vent openings
• High-density thermo-plastic construction
• The key mechanism. bi-metal coil. fully enclosed in protective cover
• Automatically opens at 70 degrees fahrenheit and closes at 40 (approximately)
• Stainless steel compression spring with 1 adjustable screw for easy installation
• Stainless steel and corrosion resistant metal parts. heavy-duty aluminum mesh screen. front and back