Ubbink's UB37 terminal is an in-line pitched roof terminal for use in small plain non-interlocking tiles. It is suitable for terminating 110mm diameter mechanical extract systems and soil and vent systems where an external pressure test is not required.
The UB37 has a free vent area of 6,250mm² and a pressure/airflow resistance reading of 43.5 Pascals (reading taken at 100m³/h).