KA-40 Pond Aerator 1.7 cfm / 2,937 cim 35 wattsKA-40 Pond Aerator Side ViewKA-40 Pond Aerator Reverse Side ViewKA-40 Pond Aerator front viewKA-40 Pond Aerator rear viewKA-40 Pond Aerator top view

KA-40 Pond Aerator 1.7 cfm


$299.99 $249.99

KA-Series Pond Air Pumps

KA-40 Pond Aerator
Aeration for 4,000 – 8,000 Gallon Ponds.

The KA-40 pond aerator is energy efficient at 35 watts. The KA-40 pond aerator costs just $0.06 per day to operate.

  • 1.7 cfm / 2,937 in³
  • Infuses oxygen into water
  • Increases circulation
  • Increases fish health
  • Increases bio filtration efficiency
  • Keeps holes open in ice
  • Energy efficient
  • 3 year warranty
  • KA Series Pond Aerators

    Pond Air Pumps

    Product Description

    KA-40 Pond Aerator 1.7 cfm / 2,937 in³

    Aeration Pump for 4,000 – 8,000 gallon ponds and fish tanks

    KA-40 Pond Aerator

  • 1.7 cubic feet of oxygen per minute
  • 2,937 cubic inches of oxygen per minute
  • Increases dissolved oxygen in all types of ponds and fish holding tanks
  • Keeps holes open in ice during winter freezing temperatures
  • Increased aeration for 8,000 to 16,000 gallon ponds
  • 5′ maximum diffuser depth
  • 120V/60Hz
  • 35 watts
  • 0.3 amps
  • 6′ heavy duty grounded power cord
  • Energy efficient air pump
  • Highly efficient diaphragm compressor
  • Continuous duty operation
  • Whisper quiet operation
  • Outdoor rated
  • Not submersible
  • Outlet for 3/8″ air tubing
  • Air line and diffuser NOT included
  • $2.01 Monthly Operation Cost @ $0.08 per kilowatt hour
  • 3 year warranty

  • KA-40 Pond Aerator 1.7 cfm / 2,937 in³

    Aeration for 4,000 – 8,000 Gallon Ponds and Fish Holding Tanks

    KA-40 Pond Aerator Aerating this Crossover Pond

    KA-40 pond air pump produces 1.7 cfm (2,937 in³) of oxygen to ponds and fish holding tanks. Oxygenated water is vital for healthy fish and aquatic life. Oxygenating the pond water also benefits the bacteria living inside biological filters.

    The KA-40 pond air pump is perfect for Crossover Ponds™. Crossover Ponds™ are typically no deeper than five feet. The KA-40 pond air pump has a maximum pumping depth of five feet.

    The Crossover Pond™ shown here is 5 feet deep at the bottom drain. The KA-40 pond air pump is pushing air through two 6″ diffuser sticks installed on top of the bottom drain. The bottom drain is not in the middle of the pond, but at the side of the pond. The air bubbles rising from the diffuser mix with the waterfalls and push surface debris towards the HydroClean™ pond skimmers at the other end of the pond.

    Although the KA-40 pond air pump is rated for outdoor use, care should be taken to make sure rainwater, groundwater, or irrigation water does not flood the air pump. The KA-40 pond air pump is not submersible.

    The KA-40 pond air pump can be used with two or four 6″ diffusers, or up to twelve 2″ round diffuser balls. At depths of 4′ – 5′, it is recommend that just two 6″ diffuser sticks, or six 2″ round diffuser balls be used.

    High Efficiency KA-40 Pond Air Pump

    Running on only 35 watts, this whisper-quiet aeration pump costs virtually nothing to run, you can feel good about providing constant aeration to your pond.

    Aeration is a key component to a healthy pond ecosystem. Pond aeration not only increases and maintains proper dissolved oxygen levels within the pond, the rising air bubbles also increase water circulation.

    During warm summer months, warm pond water holds less dissolved oxygen than in colder months. Adding our professional pond air pump with our weighted tubing and diffuser stones will help keep your valuable koi and pond fish happy and healthy. Increased levels of dissolved oxygen in your pond also increases the metabolism factor of the beneficial bacteria living in your biological pond filter.

    KA-40 Pond Aerator Keeps a hole open in the ice during winter

    During winter – the rising air bubbles will keep a hole open in the pond and prevent the pond from completely freezing over. Keeping a hole open in the pond is critical for the health of your koi and pond fish as the hole in the ice allows for potentially harmful gasses to escape the water.

    KA Series Pond Air Pumps

    Additional Information

    Weight 4 lbs
    Dimensions 17 x 13 x 13.5 in


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