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Powerful Linear Air Pump, KP-40 Pond Air Pump Pond Aerator, 635GPH Aeration System for Koi Pond Aeration, Aquarium, Waste Treatment, Fish Farm, Seafood Restaurant

  • Based on 60 reviews
Condition: New
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Availability: 20 left in stock
Fulfilled by Amazon

Arrives Thursday, Nov 6
Order within 3 hours and 23 minutes
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Pattern Name: 635GPH


Features

  • SPECIFICATION - Model KP40 with a 25W motor, 635 GPH (40 LPM) flow rate, and 0.03 MPa (4.35 psi) air pressure. The motor has a full copper coil for high efficiency, low heat, and low power consumption. Delivers strong air output and pressure.
  • QUIET OPERATION - The pond aerator pump features multiple noise reduction designs for quiet running, including a sealed air chamber, rubber & silicone buffers, and a magnetic-driven diaphragm.
  • HEAT DISSIPATION - This pond bubbler features an enlarged housing surface that significantly improves heat dissipation efficiency. This design helps reduce the risk of overheating and extends the overall lifespan of the pump.
  • AIR MANIFOLD - Our pond air pump comes with an air manifold equipped with 8 outlets (3/16"). Simply connect it to your airline tubing and air stones (not included) for optimal oxygen distribution.
  • MULTI-PURPOSE - This versatile pump can function as a koi pond aerator (enhance oxygen supply for fish), a hydroponic air pump (aeration to stimulate root growth), or a septic air pump (boost waste decomposition).

Brand: VCRAZE


Color: Grey


Material: Copper, Steel, Plastic, Rubber


Style: Modern


Product Dimensions: 7.87"L x 6.34"W x 6.89"H


Power Source: Corded Electric


Item Weight: 5.3 Pounds


Maximum Flow Rate: 40 Liters Per Minute


Maximum Lifting Height: 9.3 Feet


Voltage: 120 Volts


Brand: ‎VCRAZE


Color: ‎Grey


Material: ‎Copper, Steel, Plastic, Rubber


Style: ‎Modern


Product Dimensions: ‎7.87"L x 6.34"W x 6.89"H


Power Source: ‎Corded Electric


Item Weight: ‎5.3 Pounds


Maximum Flow Rate: ‎40 Liters Per Minute


Maximum Lifting Height: ‎9.3 Feet


Voltage: ‎120 Volts


Manufacturer: ‎VCRAZE


Specific Uses For Product: ‎Aquarium, Pond


Part Number: ‎V007


Item Weight: ‎5.3 pounds


Item model number: ‎KP40


Pattern: ‎635GPH


Wattage: ‎25 watts


Included Components: ‎Adapter, Air Manifold, Air Pump


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: July 17, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Needed an attachment to work
Pattern Name: 635GPH
It works great. It is extremely quiet and was so much less expensive than one from the plumber. My husband had it installed in 15 minutes and said it was so easy to install. We needed an attachment to help it connect because it had a power plug. Our system did not have an outlet. It is powerful and seems very durable. We are extremely happy with this purchase. ... show more
Reviewed in the United States on January 11, 2025 by Amazon Customer

  • great pump at half the price of Alita
Pattern Name: 1350GPH
very pleased. half the price of alita and does the same job
Reviewed in the United States on September 15, 2025 by W. Schebel

  • First one didn't last very long but the company sent me a replacement and it has been working great!
Pattern Name: 635GPH
Update: After my bad review, the company reached out to me and send me a free replacement. This one is working great so I am changing my review score. I'm very happy with their support and the new unit! I would now recommend this product. Original Review: Worked great initially but just after the 30 day return period the pump suddenly dropped the output air pressure and was no longer usable with the air stones I have in my small pond. It was very quiet from the start but either I got a dud or these are not made very well. Also the air distribution adaptor is plastic garbage. It does not have any valves to block the air so you either need to use all the ports or find a way to block those you are not using. I do not recommend this product. ... show more
Reviewed in the United States on October 2, 2024 by Paul S.

  • So far it is working as well as the more expensive ones..
Pattern Name: 1350GPH
For the price you pay it is working find.
Reviewed in the United States on September 19, 2025 by Kindle Customer

  • Quiet and powerful
Pattern Name: 950GPH
Great pump, it was just a little too strong for my application
Reviewed in the United States on June 30, 2025 by Johnny C

  • Good pump at reasonable price
Pattern Name: 635GPH
Nice quiet pump at a reasonable price $80 Normally I would buy Matala HK25LP at $130, that is rated at 25w 40lpm max, 25lpm at 2m(6'6") depth according to the data sheet, hence the "25". This pump is the same design, also 25w, but called a KP-40, which is suspect is the max flow. I found it to be 25lpm at 6ft depth. That matched my research expectations. 😀 ... show more
Reviewed in the United States on April 21, 2025 by Chris D.

  • Good, but beware
Pattern Name: 635GPH
Quite, yes. Strong, yes. Reliably so so.. bought a few of these pumps now thinking they were great, but some how they fail days before or days after the return time. It's like it's just built it fail then.. Bought this last one 31 days ago, return time 30 days.. just my luck I guess. ☆After making this review I was contacted by the company, they offered a replacement and shipped it right away. I really appreciate their customer service. For that I give back one star. ... show more
Reviewed in the United States on March 17, 2025 by Duston Johnson Duston Johnson

  • Works great
Pattern Name: 635GPH
Very quiet and sturdy. Keeps on working..
Reviewed in the United States on October 10, 2025 by Amazon Customer

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