I Did a quick search for Large aquarium air pumps and found a few possibility's (especially the last one), but I would want to call them and talk to a live person to make sure that they will work for your purpose.
TETRA-TEC DEEP WATER AIR PUMPS
High-Pressure Aquarium Air pump 7.0 P.S.I.
Air Pump with Diffuser - 9150 cu. in. per Minute
Aquarium Linear Air Pumps
Last edited by GpsFrontier; 11-27-2009 at 06:07 AM.
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