Lomanco vent turbines can be helped to perform even better with the use of regulation flaps. This product is an accessory to 12-inch Lomanco vent turbines to control the exhausted air directly beneath the turbine. Available in manual control or electric control, this Lomanco K12 regulation flap gives indirect control of the vent turbine so that in heated areas heat loss will be reduced in winter and throughout summer exhausted air will be ventilated even more. Manufactured from galvanized steel, Lomanco regulation flaps all have a 2-year warranty. Used in large commercial and industrial spaces to improve ventilation, regulation flaps can be purchased with manual control and electrical control with the ability to be opened anywhere from 0-100%. Each Lomanco regulation flap has a 2-year warranty. This Lomanco regulation flap is compatible with any 12-inch Lomanco vent turbine.