Air Vent RABL Automatic Foundation Vent, 17-1/2 x 8-1/2 x 6, Black

Highlights:

• Dimensions : 17-1/2 x 8-1/2 x 6
• Black color
• Vent opens at 70 deg. and closes at 40 deg.
• 50 sq. in. net free area per pc
• Eliminates excess moisture (summer) or heat loss (winter)
• Easy to install hardware
• Bi-metal coil