The screen on these round gable vents is completely up to you.
vinyl screen: 1/8 inch vented protrusions in charcoal black vinyl screen
We only use a durable long lasting vinyl screen on our gable vents.
Good to keep out wasps and other flying pests.
aluminum screen: 1/8 inch vented holes in aluminum wire screen
We use durable aluminum screen, but it can still be vulnerably to oxidation.
Good for preventing the spreading of embers in fire hazardous locations.
1/2 inch wire mesh: 1/2 inch vented openings in wire mesh screen
Good for keeping out 4 legged pests.
metal back: non vented with a black metal background