Vented 4 1/2 inch Deli Lid for Fruit Fly Cultures

Vented Lid for Fruit Flies 

Great and common for fruit fly cultures to grow in when paired with the 32oz deli cups. 
This lid has holes punched in it & is vented with a coffee filter to prevent any fruit flies from escaping.

Dimensions: 4 1/2 inch

Fits on standard 32 oz deli cups, as well as 16oz, 12 oz and 8 oz cups. 

Vented lid made with coffee filter by TRJ.