4.5" Pinwheel Exhaust Damper

$12.00
Easy to install 4.5" pinwheel exhaust damper. Welded tab allows the damper to be moved with ease. To install simply mark two holes on the lid (holes are 1.5" diameter) and use a 1.5" hole saw to drill. Drill one center hole 1/4". Maximizes airflow while being easy to install.