Waterproofing kit for construction showers, both for renovations and for new works, with AISI 304 stainless steel grille. 40 mm horizontal and vertical outlet drain and 44.6 l / min evacuation that complies with EN274 and EN1329 regulations. -one. Equipped with a removable siphon for easy and comfortable cleaning. The Kit incorporates the waterproof sheet WATERPROOF.5, to provide total sealing of the shower tray and so that in case of leaks through the floor joints, the water always ends up in the drain.