Witten Automatic 304LGR Automatic Foundation Ventilator, 8" x 16" FREEOVER35 High measurement range: 16 to

High measurement range: 16 to 35% WME

Reduce worry on the job with less slipping and more working

without danger of vapor damage or root uptake by surrounding trees and ornamentals

Works with incandescent

It's a healthier

Witten Automatic 304LGR Automatic Foundation Ventilator, 8" x 16" FREEOVER35 High measurement range: 16 toAutomatically opens at 70 degrees Fahrenheit, closes at 40 (approximately). Key working mechanism, bi metal coil, fully enclosed by protective cover. No electrical hook up required. Stainless steel and corrosion resistant metal parts. 62 square inches net free area. Heavy duty aluminum mesh screen, front and back. Highlights: Size: 8" x 16" Material: Thermoplastic Automatically opens at 70 degree F, closes at 40 degree F Finish: Gray With 18" lintel