Nordfab Quick Fit Butterfly ValvesNordfab Quick Fit Butterfly Valves Regulate Air Volumes In Clean Air Applications.
Nordfab Quick Fit Butterfly Valves are made of galvanized or stainless steel to provide long lasting durability. Duct sizes range from 4" - 16". Gauges are 20 and 22. Easy to install. For use in clean air applications only. Made in the USA.