Witten 315CBL 8 By 16 Inch Black Automatic Foundation Ventilator

1 inch width frame for new construction or to replace old foundation vents. Fits standard 8 by 16 concrete block opening. Operates automatically without electricity. Opens at 70 degrees fahrenheit, closes at 40 (approximately). With 1 inch width frame for new construction or to replace old foundation vents. Fits standard 8 inch by 16 inch concrete block opening. Operates automatically without electricity; opens at 70 degrees fahrenheit, closes at 40 (approximately). Simple homeowner diyer snap-in installation, with color matched set screws for additional stability. Removable back for maintenance and cleaning. Screened completely front and back with 1/8 inch heavy-duty aluminum mesh. High-density thermo-plastic construction. All metal parts are corrosion resistant stainless steel. Aluminum louvers. No mortar required for installation. 62 square inch net free area.

With 1 in W frame for new construction or to replace old foundation vents. Fits standard 8 in x 16 in concrete block opening. Operates automatically without electricity, opens at 70 deg F, closes at 40 (approximately). Simple homeowner/DIYer snap-in installation, with color matched set screws for additional stability. Removable back for maintenance and cleaning. Screened with 1/8 in heavy-duty aluminum mesh. High-density thermo-plastic construction. All metal parts are corrosion-resistant stainless steel. Aluminum louvers. No mortar required for installation. 62 sq-in net-free area. 8 in x 16 in. With 1 inch W frame for new construction or to replace old foundation vents. Fits standard 8 inches x 16 inches concrete block opening. Operates automatically without electricity; opens at 70 degrees Fahrenheit, closes at 40 (approximately). Simple homeowner/DIYer snap-in installation, with color matched set screws for additional stability. Removable back for maintenance and cleaning. Screened with 1/8" heavy-duty aluminum mesh. High-density thermo-plastic construction. All metal parts are corrosion resistant stainless st eel. Aluminum louvers. No mortar required for installation. 62 square inch net free area. 8 inches x 16 inches.