Witten Automatic Vent 306MBL Foundation Vent, 8" x 16", Stainless Steel, Pack of 4

Fits standard 8 inch x 16 inch vent openings. No electrical hook-up. High-density thermo plastic construction with stainless steel metal parts. No electrical hook-up. Heavy-duty aluminum mesh screen front and back. Size: 16" x 8". Type: Automatic -retrofit. Net free area: 65 sq. in. Color: Black. Material: Plastic W/stainless steel parts. Pig Sty: 1. Package type: Box.