4" Round No screen vent - tab style, mill - bag of 4 Open screen w 1/8 mesh RBLS-104 6"2PK

RBLS-104 6"2PK

These round aluminum vents have a strong 1/8" screen to keep insects out

5" Black Open Screen Vent

They do Not have a screen

4" Round No screen vent - tab style, mill - bag of 4 Open screen w 1/8 mesh RBLS-104 6"2PK4" Round Mill No Screen Vent, tab style bag of 4 RLT 200 4"4PK These round aluminum vents have closely spaced louvers to keep insects out. They do not have a screen. They are easy to install into a 4" hole made by a drill type hole saw. They are held in place by 6 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