Whale of a Deal
  • Gast 0523 Rotary Vane Septic Air Pump - Part Number 0523
  • Gast 0523 Rotary Vane Septic Air Pump - Part Number 0523

Gast 0523 Rotary Vane Septic Air Pump


The Gast 0523 Rotary Vane septic air pump fits many 500 GPD or larger aerobic septic systems. The new and improved model is quieter and more energy efficient than previous older models. This unit does not include the motor cooling fan that is included with the Gast AT05

The Gast 0523 is a compatible replacement for the Gast 0323, Gast 0523, Gast RV03, Gast RV05, Thomas QR-0030, and Thomas QR-0050.

This air pump is brand new and as part of our Whale of a Deal program has an 18-Month Warranty.

In Stock

$445.00MSRP: $495.00

Item #:0523

Manufacturer: Gast

Power Cord Options:

Gast 0523 Rotary Vane Specifications

  • Gast Model 0523-126Q-SG588DX
  • 4.5 cfm (cubic feet per minute) Maximum Flow (@ 0 PSI)
  • 10.0 psi Maximum Continuous Pressure, 15.0 psi Maximum Intermittent Pressure
  • 1/4'' Female Threaded Outlet
  • 1/4 HP, 120VAC, 60 Hz, 4.7A
  • 1 Phase, 1725 RPM, 1.00SF
  • Dimensions: 13.74'' L x 8.32'' W x 6.30'' H
  • Includes All Internal and External Air Filters and Mounting Feet
  • Condition: NEW
  • Replaces the Gast models 0323, 0523, RV03, RV05, Thomas QR-0030, and Thomas QR-0050
  • Fits Many 500, 600, and 750 GPD Aerobic Treatment Systems (Sizing is Determined By Brand of Aerobic System)
  • Replacement Parts Available
    (The Standard Manufacturer's Warranty is one year and Septic Solutions' warranties this unit in full for an 6 Months)

Gast 0523 Rotary Vane Applications

The Gast 0523 Rotary Vane septic air compressor is used on 500-750 GPD rated NSF Class 1 Standard 40 aerobic treatment systems (ATUs). The Gast 0523 compressors are also commonly used in pond aeration applications. With their ability to run continuously at 10.0 psi, they can pump to depths of 15-18 feet. This is much deeper when compared to the linear diaphragm pumps which can only push air to depths of 6 to 8 feet.

Gast 0523 Rotary Vane Aerator Downloadable Documents