4" Round Open Screen Vent w 1/4" mesh, black - bag of 4 Rain Barrel Vents 02 si nfa (square inches

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

These flush-mount stainless steel butterfly vents open and close with a knob in the center

5" White Open Screen Vent

RWS-108 6"2PK

4" Round Open Screen Vent w 1/4" mesh, black - bag of 4 Rain Barrel Vents 02 si nfa (square inches4" Black Open Screen Vent, 1 4" mesh bag of 4 RBLS 104 4"4PK These small round vents are made of Aluminum. They 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. 7. 380 si nfa (square inches of net free ventilation area). Bag of 4 vents. Made in the USA. Orders placed by 3 pm MDT will ship