| Brand | Unbranded/Generic |
|---|---|
| Unit Type | Unit |
| Model | Large |
| Unit Quantity | 100 |
| Country of Origin | United States |
Check the listing for details. Foundation Vent Cover Steel - Prevent Cold Floors 21.25" X 5.25". Condition: New, Made in United States. Listed at 13.99 USD. 21.25" x 5.25" standard size. Other size also available by special order. Most vent openings have a 1/4-20 bolt protruding near the center. Simply slide the new vent cover over that bolt and then screw on the new wing nut that is provided.