1) The freestop system is equipped with an o-ring gasket to protect against bad odours and a special cover to prevent the pipes from interfering with the float operation. The protection grill prevents the passage of impurities. 

2) As the level of condensation increases, the float automatically rises to allows the liquid to drain off.

3) When the drain is finished, the FREESTOP system lowers automatically sealing the drain hermetically.