3" Round Open Screen Vent w 1/8" mesh, black - bag of 4 Open Screen vents 842 si nfa (square inches

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

They are held in place by #6 screws

Insect screen could be easily added

Fits into a 2 inch round hole

The louvers are closely spaced to prevent wasps or other insects from entering

3" Round Open Screen Vent w 1/8" mesh, black - bag of 4 Open Screen vents 842 si nfa (square inches3" Round Open Screen Vent w 1 8" mesh, black bag of 4 RBLS 108 3" 4PK Bag of 4 vents. These small round vents are made of aluminum and have a strong 1 8" screen to keep insects out. They are easy to install in wood. Not made for metal, glass or PVC pipe. They fit into the hole made by a drill type hole saw and are held in place by knobs on the side of the vent. No nails or screws are needed. Fits into a 3 inch round hole. Made in the USA. Orders