Lasso Technik AG's wastewater valves are used to secure the pipes against the return of wastewater and are designed to withstand a back pressure of up to 0.5 bar. Our wastewater valves are ideal for quick and easy installation for both industrial and residential customers. In addition, the valves are equipped with an airtight odour check valve and ensure that no duct gas can escape from the cellar. This high-quality wastewater connection also serves as a nose flap (frog-proof) and prevents small animals from entering the sewer system.