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Original price $252.00 - Original price $252.00
Original price
$252.00 - $252.00
Current price $252.00

Blue Diamond ET120 Septic Air Pump

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Blue Diamond ET120

The Enviro linear septic air pumps/aerators are known as top of the line in quality, durability, and overall air flow. If you are in the market for a new aerator, check out the ET120 today.


The ET120 contains energy efficient motors. This means that these motors only consume a minimal amount of power. The use of green technology puts The Blue Diamond ET120 one step above all the other competition. Rest assured that this aerator is an amazing friend to the environment. Even when it is used continuously, only minimal power is exerted. Despite the low power usage, the ET120 still has some of the highest air flow rates known to man. The airflow will pump into your waste water and help you manage it with ease. In addition, the specially formulated diaphragm material guarantee the extended life of your aerator. Because all parts of the ET120 are weatherproof, you can rest assured that your air pumps components will never deteriorate. In addition, the ET120’s robust, compact construction makes it suitable for both intermittent as well as continuous duty applications. These specific pumps are not to be used on ponds over 5 foot in depth as the back pressure will ruin them, as it is not good for them. Blue Diamond aerators noise level is higher than other comparable linear diaphragm aerators.


Not only is this aerator used by consumers, it is also known as the tool used by original equipment manufacturers of NSF certified residential sewage treatment systems. The use of this product by these manufactures proves that this product is top notch. Make cleaning out your septic tank a breeze with The Blue Diamond ET120 Septic Air Pump. 

1 Year Manufacturer Warranty


  • Linear Diaphragm air pump
  • 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 should operate continuously is 1.45 PSI
  • The noise level of this product will be a little louder than the average ambient noise within a home
  • Oil free operation
  • Thermal over load protection

P/N: K0-42WG-31SP


Rated Voltage 120 Volts

Power supply Frequency 60 Hz

Power Consumption 90 W

Maximum Pressure 1.45 PSI

 Airflow at maximum Pressure 120 L / min 4.24 cfm

Sound level 45 dB

Weight 21 lbs.

Length 10.5 In

Width 8.4 In

Height 7.8 In

Outlet Outer Diameter 0.71 In

For more information about the Blue Diamond ET120 or aerobic septic systems, feel free to contact us.

WARRANTY: Blue Diamonds come with a 1 year manufacturer warranty. Any and all warranty claims MUST be handled direct with Blue Diamond Pumps. Wholesale Septic Supply does NOT warranty Blue Diamond Aerators.




Ask a Question
  • What size pipe is needed for the et 120 air pump?

    1/2 inch it the preferred size pipe to use with this  aerator. It reduces the back pressure and let the unit work easier by putting less stress on it.