Witten 306MGR Energy Saver Auto Foundation Vent, 8" x 16", Gray Workbenches Dries a concrete color

Dries a concrete color

No bulbs required

Uses 3 AA batteries - not included

Will not chip or crack due to changes in temperature and are specifically designed for effective drainage

Magnetic Base For Fast Easy Location

Witten 306MGR Energy Saver Auto Foundation Vent, 8" x 16", Gray Workbenches Dries a concrete colorHighlights: 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