Hiblow HP-120 Septic Air Pump

The Hiblow HP-120 is a power-efficient septic air pump designed with a linear diaphragm pump. This specific pump contains only an exhaust port, and the inlet air is pulled through an orifice. With thermal overload protection, this standard UL approved 120 VAC model is oil-free and durable. Although it is priced higher than other air pumps, it will prove to be long-lasting and cost-effective—whether it is used continuously or intermittently. You can contact Hiblow USA for custom voltage applications. They provide 48 VDC system applications using external PWM controllers for modulating pump flow.

Hiblow USA serves as a subsidiary for Techno Takatsuki Co., who introduced the first diaphragm pump in 1967. It has since then become the most common type of air pump used for aerobic septic systems. Why is it so popular? A high percentage of solids with varying size can easily be expelled with almost 200 psi discharge pressure, making it strong and efficient. 

Additionally, an aerobic septic system is considered most ideal for the breakdown of organic material in septic tanks. The aerobic, oxygen-loving respiration occurring creates 20 times more energy than an anaerobic system. The oxygen-filled environment of this type of system allows waste to break down faster. Therefore, with the necessary aeration process fulfilled by the Hiblow HP-120 Septic Air Pump, the organic material leaving the septic tank will be considerably lessened, while the amount of clean water produced is increased.

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Product Specifications

  • Weight: 8.5 kg
  • Noise Level: 40 dBA 
  • Power Consumption: 115-125 W 
  • Airflow Volume: 120 ℓ/min 
  • Rated Loading Pressure: 17.7 kPa 
  • Power Supply Frequency: 50-60 Hz 
  • Rated Voltage: 120 VAC
  • Dimensions: 200 x 222 x 110 mm

It is important to note that the Hiblow HP-120LL has different internal parts; therefore, the 120 pumps and kits will not work in the LL model.


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Hiblow is known for providing top-of-the-line septic aerators. Truly, they are known for their longevity and premium grade materials. In fact, Hiblow's aerators have been put to the test across the country and proven to last long lives. Not to mention rebuild kits are available to prolong the lifespan of your pump. Nevertheless, they have been known to power systems around the world for nearly 100 years.
This website is owned independently separate from Hiblow USA, Techno Takatsuki, LLC
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