Optimum oxygen supply to flora and fauna in ponds.The AIR ACTIVE SET 1,000 ventilation kit optimizes the oxygen supply to flora and fauna in your garden pond. On warmer days, the use of oxygen required for survival is especially important through a powerful pond aerator. This means that the gas is exchanged regularly. Especially in winter one can simply keep larger surfaces ice-free and create toxic waste gases from the water. The pond aerator that runs particularly quietly can also be set up flexibly outdoors thanks to its delivery package. Included in delivery is 1 air hose (10 meter), 2 ventilation stones (Ã 50 mm) and 2 non-return valves.This text is machine translated.