4" Round Open Screen Vent - tab style, black - bag of 4 Open screen w 1/4 mesh This vent is designed to

This vent is designed to fit into an elbow or coupler and will not fit inside the end of the pipe

white - bag of 2

1/4" mesh - bag of 4

Not made for glass or metal or PVC pipe

4" Round Open Screen Vent - tab style, black - bag of 4 Open screen w 1/4 mesh This vent is designed to4" Round Black Open Screen Vent, tab style bag of 4 RSTBL 100 4" 4PK These round aluminum vents have a 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 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