The Helios FRS-KVK 6−75÷125 L is a FlexPipe combination distribution box designed for efficient air distribution in ventilation systems. It features a supply air connection positioned on the left, making it ideal for spaces adjacent to extract air rooms. The unit includes two DN 100 connections for direct insertion of extract air valves (DLV), ensuring seamless airflow control. Additionally, it supports the supply air distribution by connecting up to six ventilation ducts (FRS‑R 75). Its compact design allows flexible installation in various ventilation setups.