Delivers efficient ventilation for your garden pond the power ventilation for your garden pond with a powerful 10w crystalline solar module and 5 outputs each output has a 3 m hose and one sparkling stone each with this set you can ventilate multiple points in your pond at once or aerate multiple small ponds at the same time features max airflow 5 x 120 l h durable low wear air pump includes 5x 3 m hoses and 5 bubbling stones