4" Round Open Screen Vent w 1/8" mesh, white - bag of 4 Plugs They are held in place

They are held in place by #6 screws

tab style - bag of 4

3" Round Open Screen Vent with 1/8" mesh screen - mill color - bag of 4

plastic or PVC pipe

glass or PVC pipe

4" Round Open Screen Vent w 1/8" mesh, white - bag of 4 Plugs They are held in place4" Round Open Screen Vent with 1 8" mesh white bag of 4 RWS 108 4"4PK These round aluminum vents have a strong 1 8" screen to keep insects out. They are easy to install in wood. Not made for glass, plastic 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 4 inch round hole. Made in the USA. Orders placed by 3 pm MT will ship by the next