Wirquin Neo Air; Allows The Pipes To Be Naturally Ventilated. When Negative Pressure Is Created In The Pipes; Wirquin Neo Airs Membrane Rises And Thus Creates Continual Ventilation To Prevent Suction Of The Depth Of Seal. Anti Vacuum Function. **Technical Characteristics For The 80mm Water Seal**Flow Rate L/Min: 59;6 L /Min.*Depth Of Seal: 80 Mm *Adjustable Height: 175greater Than235
