MADE TO ORDER - Lead Time 2-3 weeks
Custom Sizes Available
Butterfly volume control, with two opposing fins that
open and close simultaneously with the action of a
screw in the center that is operated with a
Available in diameters from 4” up to 24”.
Natural galvanized sheet. Diameters 4” up to 20”,
gauge 26 and diameters 22” and 24” with a 24
Natural galvanized sheet.