Sea-Dog Stainless Steel Butterfly Vent - Center Knob - 4" [331440-1] Brand_VDO Boat Length - Max (Feet):

Boat Length - Max (Feet): 20'

low noise motor

Power: 3 Watts

allowing you to graphically see the direction in which a target is moving

Shape: Square

Sea-Dog Stainless Steel Butterfly Vent - Center Knob - 4" [331440-1] Brand_VDO Boat Length - Max (Feet):Stainless Steel Butterfly Vent Center Knob 4" Butterfly Vents promote air flow preventing mold, mildew, and associated odors. Features a center knob that allows for easy adjustment of the opening. Corrosion resistant 304 stainless steel construction. Installs with four #6 RH fasteners (not included). WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.