Pond Boss Forums AERATION Systems questions 1/3 hp. replaced by 1/4 hp compressor?

Cecil - A couple years ago, GAST added a new model compressor to their compressor line-up. The 1/4 hp unit that you refer to has the same output specs and almost the same compressor dimensions as the 1/3 hp 0523 series unit which is still available. The 1/4 hp motor of the 0523 series unit is designed to run 220 or 110 depending on how wiring is set up. The unit comes wired 220 from the factory and when attaching the cord I wire it for the needs of each customer. Obviously 1/4 hp unit has a slightly lower amp draw of the motor. I now only handle the 1/4 hp unit for more verisility and better efficiency for the consumer. Rebuild kits are the same part number for both units. FYI - GAST was testing another new more efficient motor for the 0523 series in 2004; however it is not available to the public yet.