The DRAIN UNIT WITH LATERAL DISCHARGER, MESHED FLANGE AND SIPHON is an ideal means of attaining continuity between the area being waterproofed and the discharge pipe from balconies, bathrooms, utility room etc. It has been designed for use with two-component cementitious waterproofing and all cold applied liquid membranes.
Further info from manufacturer on VENTILATED RIDGE ELEMENT ITALPROFILI