Hakko 120L Linear Air Pump

by Hakko
$ 524.00


The Hakko new HK-120LH linear air pump represents a top of the line Linear Air Compressor with 36 month warranty. The new HK-120LH has a newly designed magnet (actuating armature) which helps the pump to run cooler than the orignal HK-120L.

The Hakko Air Pump 120 will deliver a maximum of 138 Liters Per Minute.

This is a cast iron body style. It is a small unit with surprisingly high output. The Hakko air pumps are built to last with a very durable body and mechanics meaning years and years of everlasting quality airflow.

Very low noise 32/38 dB at 1 meter, low power consumption, Silent operation, Completely oil free, Overload protection with Auto off/on switch for overheat situations. Low power consumption. UL and CE listed for outdoor use.

Outlet fitting is 1" O.D. 6 foot power cord supplied.

No oil needed for lubrication making the Hakko easy to maintain.

You can differentiate between the original HK-120L and the new HK-120LH by the color of the knob on top of the unit. The original HK-120L has a black knob and the new HK-120LH has a gray knob.

When ordering replacement magnets for the new HK-120LH be sure to order the HK-M120H/200/250 magnet. If you have the original HK120L (prior to 2015) air pump please order the HK-M120-magnet.

The replacement diaphragm kit HK-D100/120 fits both the HK-120L and the HK-120LH.



  • Aeration
  • Liquid agitation
  • Mamut pump for air lift
  • Aerobic treatment

Features & Benefits

  • High Efficiency
  • Simple Maintenance
  • Completely Oil-Free
  • Overload Protection
  • Silent Operation
  • Long Life Expectancy


  • Model: HK-120LH
  • Rated Voltage (V): AC 115 (AC 110/115/120 or
    AC 220/230/240)
  • Power Supply Frequency (Hz): 56 / 60
  • Normal Pressure Bar (psi): 0.20 (2.84psi)
  • Rated Performance lpm (cfm): 121
  • Power (W): 126
  • Noise Level (dB): 42
  • Closed Pressure / Bar: 0.54
  • Closed Pressure / psi: 7.8
  • Weight (kg): 8.9 / 19.6
  • Maximum Dimensions: 260 x 199 x 244 MM

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