2.5" Round No screen vent - tab style, black - bag of 4

2.5" Round Black No Screen Vent, tab style - bag of 4 RBLT-200 2.5"  4PK These round aluminum vents have louvers. They do not have insect screens.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 be bent over from the rear. Fits into a 2.5 inch round hole.1.267 si nfa (square inches of net free ventilation area). Bag of 4 vents. Made in the USA. Orders received by 3 pm MT will ship the next business day.