Cast iron galvanized, threaded cap bronze, 30-mesh screen .125% venting area. Guards against driving rain, snow and sleet.
The Mushroom Vent Oil Tank Caps features:
This popular style is used in the majority of installations in
the United States, Alaska, and Canada
Rust-resistant galvanized cast iron design
Designed with a 30 mesh screen, to prevent
debris from entering the vent pipe