Since the mesh is slightly larger than the opening it should be a tight fit.
Wire mesh air vent covers.
The mesh may become blocked with dust leaves dirt etc which would restrict or even block air flow and increase the risk of the carbon monoxide poisoning.
Builders edge 4 in plastic louvered dryer vent cap.
Vent cover round soffit vent air vent louver grille cover built in fly screen mesh hvac ventilation 8 inch grey 4 5 out of 5 stars 112 13 95 13.
Place the mesh inside the vent against the existing screen.
304 stainless steel mesh screen type mesh 20 wire 11 4 x 23 6 29cm x 60cm woven vent mesh metal wire mesh for air ventilation door shower drain and cabinet 1pcs 4 7 out of 5 stars 59 13 99 13.
Bend the outside edges to fit if necessary.
304 stainless steel mesh screen type mesh 20 wire 11 4 x 23 6 29cm x 60cm woven vent mesh metal wire mesh for air ventilation door shower drain and cabinet 1pcs 4 7 out of 5 stars 59 13 99 13.
You can use them to cover foundation vents air vents floor drains gutter guards fan guards soffit screens and exposed pipes.
Lambro 4 in plastic pest guard dryer vent cap.
304 stainless steel mesh screen type mesh 20 wire 11 4 x 23 6 29cm x 60cm woven vent mesh metal wire mesh for air ventilation door shower drain and cabinet 1pcs 4 7 out of 5 stars 59 13 99 13.
Kindpma 2 pcs rodent mesh stainless steel woven wire mesh 300 x 210 mm metal mesh sheet mouse mesh a4 air brick covers 1 mm vent covers mouse mesh prevent snakes proofing 4 5 out of 5 stars 105 8 99 8.
For pricing and availability.