Our smart vent bases will change your windshield into a “vented” windshield. Very easy to install on 3/16″ poly carbonate windshields by removing your bottom windshield seal and installing the specially made smart vent windshield supports. Helps to reduce negative cab pressure giving you a cooler, less dusty ride and you don’t have to buy an expensive windshield to do it. To un-vent simply remove and replace with your original base seal. Set will work with any brand machine.