How to install the 14 in. x 4 in. Galvanized Steel 2-Way Reversible Vent?

Remove the old vent from the location and any loose debris from opening.

Remove the old vent from the location and any loose debris from opening. Apply a bead of sealant to the vent flange. Using the partial punched corner fastener guides (4 per vent), fasten vent with nails or screws back in opening.