4" Round Rain Barrel Vent - bag of 4 Open Screen vents 79 si nfa (square inches

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

They are easy to install in wood

These round aluminum vents are easy to install in wood

The stainless steel type 304 mesh screen is strong and durable while allowing for maximum airflow

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

4" Round Rain Barrel Vent - bag of 4 Open Screen vents 79 si nfa (square inches4" Round Rain Barrel Vent bag of 4 RRBS 100 4" 4PK These round aluminum vents have a screen reinforced by strong 1 4" mesh to keep insects out. They are easy to install in wood. Not made for glass, metal 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