2.5" Round Open Screen Vent w 1/8" mesh, black - bag of 4 Screened vents They do not work well

They do not work well in wood

5" Round Open Screen Vent with 1/8" mesh - white - bag of 4

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

Fits into a 2

4" Round Black Plug - bag of 4

2.5" Round Open Screen Vent w 1/8" mesh, black - bag of 4 Screened vents They do not work well2. 5" Round Open Screen Vent w 1 8" mesh, black bag of 4 RBLS 108 2. 5" 4PK Bag of 4 vents. These small round aluminum vents 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 2. 5 inch round hole. Made in the USA. Orders placed by 3