Crassus is your problem solver for connection, wall penetration and repair of wastewater pipes! The App provides you the opportunity to select same or different wastewater pipes as well as same or different dimensions. Subsequently, the App calculates the best product solution for you! Moreover you can view the functionality, browse in the wastewater pipe dictionary or look at product details. More than 15.000 clever Craftsman use our App! Special Features: - The App works offline - no Intern