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Current price $540.00

Gast 0523-101Q-G588DX Rotary Vane Septic Air Pump

by Gast
  4 Reviews
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Gast 0523-101Q-G588DX Rotary Vane Septic Air Pump


We are no longer stocking the Gast 0323/0523 models. Please use the below link to purchase a Gast AT05. Only differences is that the AT05 is not dual voltage, and has an added cooling fan, that the 0323/0523 models do not have.

Gast model 0523-101Q-G588DX is a 115 volt 1/4 H.P rotary vane aerator that is common on septic systems from 500 GPD to 1000 GPD. It produces a maximum of 4.5 cfm and has a maximum pressure of 10 psi of pressure this makes them excellent for pond aerators as well up to 1 acre.

Often favored by professional installers, the rotary vane design allows for easy maintenance as well as a long life. Rebuild kits are available for this product. This product can be expected to perform for five or more years before it will require a rebuild kit.


  • Rotary vane air compressor
  • These specifications are results for a system with a 120-volt power source
  • Most power providers within the United States provide VAC at 60 Hz
  • The highest pressure at which this product can operate continuously is 10 PSI
  • The maximum airflow through the outlet of this product is 127 liters per minute
  • The noise level of this product will be less than double the average ambient noise within a home.
  • Low air pulsation
  • Oil free operation
  • Thermal overload protection
  • Easy maintenance
  • K478 Repair kit



Rated Voltage  120 Volts

Power supply Frequency 60 Hz

Current 4.6 Amps

Power   190 (1/4) W (hp)

Rotations Per Minute 1725 RPM

Maximum Pressure 10 PSI

Maximum Airflow 127 L / min 4.5 cfm

Sound level Less than 70 dB(A)

Temperature Range 38.8 – 104 ℉

Weight 32 lbs.

Length 14.12 In

Width 5.63 In

Height (without filter) 6.36 In

P/N: 0523gs

Please NOTE that these will arrive to you wired for 230V and you will need to RE-WIRE it to 115V yourself. Below is a video walking you through this.


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