4" Round Open Screen Vent w 1/4" mesh, mill - bag of 4 No Screen vents 1/4" mesh - bag of

1/4" mesh  - bag of 6

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

or patio downlights

3" Mill Open Screen Vent

5" x 4-5/8" stainless steel louvered vent

4" Round Open Screen Vent w 1/4" mesh, mill - bag of 4 No Screen vents 1/4" mesh - bag of4" Mill Open Screen Vent, 1 4" mesh bag of 4 RS 104 4"4PK These round aluminum vents have a strong 1 4" screen to keep insects out. They are easy to install. 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. They are designed to go into wood. Not suitable for metal, glass or PVC. 7. 380 si nfa (square inches of net free ventilation area). Bag of 4 vents. Made in