Tear Drop Muller vent for canopies

Description Plastic tear drop Muller vent for canopies and Trailers. Designed to take advantage of the venturi effect. The Muller vent is shaped as a teardrop to channel air into your canopy or trailer even while stationary. The venturi effect increases the speed of the air flowing into your canopy / trailer and decreases the pressure by restricting the airflow. Size is 285 x 185 x 58mm