These are excellent quality back draft dampers. They are made from heavy-gauge galvanized steel with heavy-duty springs. They use both an embossed bead and rubber gasket to help keep ducting securely in place. They prevent back draft air when your fans are off.

Weight 1.3 lbs
Dimensions 6.3 × 6.3 × 5.4 in


SKU: 736982 Category: Tag: