2" Round No screen vent - tab style, black - bag of 6 Stainless Steel Vents They fit into the hole

They fit into the hole made by a drill-type hole saw and are held in place by 4 tabs on the side of the vent

79  si nfa (square inches of net free ventilation area)

030si nfa (square inches of net free ventilation area)

2" Round Mill No Screen Vent - bag of 6

Fits into a 3 inch round hole

2" Round No screen vent - tab style, black - bag of 6 Stainless Steel Vents They fit into the hole2" Round Black No Screen Vent, tab style bag of 6 RBLT 200 2" 6PK These round aluminum vents have closely spaced louvers to keep insects out. They do not have a screen. They are easy to install. They fit into the hole made by a drill type hole saw and are held in place by 4 tabs on the side of the vent. No nails or screws are needed. Note: These are made for thin materials like metal, glass or plastic. They do not work well in wood. The tabs need to