As we all know oxygen is vital to all aquatic inhabitants whether they are koi goldfish tropical / marine fish or bacteria. The EA Airpump range provides high performance diaphragm air pumps for all fishkeepers. The range was purposely developed for fishkeepers to deliver that essential element into their ponds - specifically air. EA Airpump has been tested and proven to provide the highest output at any given depth to be economical to run and totally reliable. Well engineered robust and durable every unit has thermal protection fitted as standard. Maximum Output - LPM 70 Output at 1m Depth - LPM 52 Max. operating depth 3.2m Power Usage - watts 34 dba