The ventilation switch for safe aeration and ventilation – innovative, reliable, flexible Our alternative aeration and ventilation unit sets new standards for the aeration and ventilation pipe of lifting stations and grease separators. With state-of-the-art technology and a clever design, it ensures safe operation – even in the case of backwater. Automatic safety: Equipped with two float closures that close automatically in the case of backwater and therefore reliably protect your system. Dual functionality: The aeration and ventilation is carried out directly in normal operation through the sewer system. In the case of backwater, an activated carbon filter takes over, ensuring ventilation across the room. The filter remains dry during normal operation, extending its service life. Easy maintenance without tools: The modular design allows quick and convenient access to the inside of the unit. Maximum flexibility: CleverVent can be easily adapted below the backwater level - in the free-flow drainage system with different sleeve and socket dimensions (DN 90-200) (accessories not included).