Hakko Matala Linear Air Pumps
Hakko Matala Linear Air Pumps
Matala Hakko HK-25LP and HK-40LP Air Pump ModelsMatala Hakko HK-40L, HK-60L and HK-80LH Air Pump ModelsMatala Hakko HK-100L and HK-120LH Air Pump ModelsMatala Hakko HK-150L, HK-200L and HK-250L Air Pump ModelsMatala Hakko HK-60L Air Pump with L-Tube and Optional Heavy Duty Gang Valve
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Matala Hakko Air Pumps are high-quality, whisper-quiet linear air pumps. These oil-free, energy-efficient aeration pumps have high output with low cost and come equipped with overload protection to prevent overheating. All Hakko pumps are UL and CE listed for outdoor use. Pumps are protected by 3 year warranty, which does not cover replaceable diaphragms and magnet bars. To extend diaphragm life, avoid unnecessary backpressure by using sufficient number of clean diffusers.

  • During summer months, pumps must be properly ventilated to prevent overheating
  • During winter months, pumps should be covered for weatherproofing

Why Should I Aerate My Pond?
Aeration increases oxygen levels, which not only benefits fish and plants but promotes beneficial bacteria growth in biological filters, Aeration also lowers toxic gases and ammonia by promoting gas exchange, reducing chance of winter fish kills by keeping a hold open on the water's surface. Aeration can also be used to agitate stagnant areas of the pond, drawing debris into a skimmer or bottom drain.

Model # Maximum
Pond Size
Air Flow Rate
Watts Ideal
at 1m
Outlet Housing Cord Dimensions Wt UPC Code
HK-25LP 2,500 gallon 32Lpm (1.1cfm) - 17 2-6' 11' 32/38dB 5/8" Composite 6' - - 4712765137452
HK-40L 4,000 gallon 70Lpm (2.5cfm) 1.85psi 40 2-8' 14' 35 dB 5/8" Cast Iron 6' 8" x 6.9" 
x 8.5"
11.9lb 4712765137018
HK-40LP 4,000 gallon 70Lpm (2.5cfm) 1.85psi 40 2-8' 14' 35 dB 5/8" Composite 6' 11.9lb 4712765137469
HK-60L 6,000 gallon 82Lpm (2.9cfm) 2.13psi 63 2-10' 18' 38 dB 5/8" Cast Iron 6' 13.8lb 4712765137025
HK-80LH 8,000 gallon 100Lpm (3.5cfm) 2.13psi 85 2-13' 19' 38 dB 5/8" Cast Iron 6' 13.8lb 4712765137032
HK-100L 10,000 gallon 119Lpm (4.2cfm) 2.56psi 116 2-12' 16' 40 dB 5/8" Cast Iron 6' 10.2" x 7.8" 
x 9.6"
19.6lb 4712765137049
HK-120LH 12,000 gallon 138Lpm (4.9cfm) 2.84psi 126 4-12' 18' 42 dB 1" Cast Iron 6' 19.6lb 4712765137056
HK-150L 15,000 gallon 210Lpm (7.4cfm) 2.85psi 151 - 13' 50 dB 1" Cast Iron 6.5' - 33lb 4712765137490
HK-200L 20,000 gallon 290Lpm (10.2cfm) 2.85psi 179 - 12' 51 dB 1" Cast Iron 6.5' - 33lb 4712765137506
HK-250L 25,000 gallon 370Lpm (13.1cfm) 2.85psi 277 - 13' 52 dB 1" Cast Iron 6.5' - 33lb 4712765137513

Mounting Instructions
The Matala high volume air pumps do not come with the air outlet threaded inside.  This is because the manufacturer does not want users to restrict the air flow. Instead, the large 1/2" O.D. outlet comes with a rubber elbow that is 1/2" I.D on one end and 5/8" I.D. on the other end.  We encourage using this elbow to adapt to PVC, flexible PVC or to a gang valve like the Matala Hakko Heavy Duty Brass Gang Valves.

We recommend using a gang valve and keeping an extra valve open. During setup, use this extra valve to "bleed off" excess air so that there is not excessive back pressure. Slowly close the extra valve until the air flow is at its maximum. Do not continue to close valve beyond maximum airflow, as this excessive back pressure will shorten the life of your air pump diaphragms.