Air Vent 81237 Aluminum Reversible Louver, 18" x 24", White SummerFun 4-ply design for lasting durability

4-ply design for lasting durability

a substance known to the State of California to cause cancer

Bladearmor® coating helps reduce friction while cutting

Product has a 12 month shelf life when stores in a cool dry place

Time Heat-Up: 6 s

Air Vent 81237 Aluminum Reversible Louver, 18" x 24", White SummerFun 4-ply design for lasting durabilityWall louvers are installed in the gable end of the attic. The higher they are placed, the more effective they become as exhaust vents. Wall louvers are not preferred for ventilating an attic, because they provide limited airflow under the roof deck, resulting in "hot spots". Can be used where ridge vents are impractical, or where the homeowner doesn't want roof vents. White Reversible 118. 8 sqin net free area Riveted construction Improves air flow