PRODUCTS
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-Durable plastic louver air valve
-Two vane shutoff
-Black color
-Wide air flow pattern
-Anti-rotation rib fixes air valve in place
-Easy snap-in installation
AV4000 is a two vane louver air valve made from injection molded nylon. The large orifice design of the AV4000 provides a wide air flow pattern. The vane housing rotates 360 degrees for directional control of the air stream. The anti-rotation rib on the side of the housing prevents the air valve from rotating when adjusting the vanes.