Oil-Rite Corp A3229-4 Vent Plugs Vent Plugs – Each

VENT PLUGS WITH DEFLECTORS
Vent plugs with deflectors can also serve as filler plugs. They are equipped with a splash deflector which prevents the liquid from spilling into the vent hole and outside. To allow air to communicate freely with the outside, no screens or filters are used which might make the units inoperative.