Jump 4K Gyre Flow Pump (4,000 GPH)

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Discontinued by Bulk Reef Supply
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Eliminate Deadspots with 24-Hour Programmable Laminar Flow

  • Superior crossflow technology
  • Achieve full, evenly-distributed circulation with minimal deadspots
  • Near-silent operation with Sine Wave technology
  • Can be mounted vertically or horizontally
  • Controller included with large LCD display
  • Fully programmable 24 hour flow cycles with different water movement modes
    • Constant Speed
    • Pulsing
    • Gradual Pulsing
    • Random
    • Alternating Gyre
  • 1 Year manufacturer warranty


The Maxspect Jump series is designed to give aquarists an affordable and straightforward entry into the reefkeeping hobby. The new Jump Gyres have the same form factor, crossflow and Sine Wave technologies seen in Maxspect's flagship Gyre series, but in a slighly smaller package and with an easy-to-use integrated controller. 

The Maxspect Jump Gyre Flow Pumps incorporate Cross Flow technology to generate a "sheet" of water across your tank for improved overall water circulation. With Crossflow technology, the water even bounces back after reaching the other side of your aquarium, virtually eliminating any dead spots. Compared to other traditional propeller style powerheads, the Gyre produces an even, linear flow that can reach across longer tanks without creating direct hot spots of flow. 

The Jump Gyre Flow Pumps include an integrated controller which allows for full 24-hour flow cycle programming. You can choose from several different flow modes to run throughout various times of the day-- constant, pulsing, random, alternating, etc-- so you can dial in your circulation patterns to suit your reef tank's needs. 



Model - MJ-GF4K

Power Consumption - 45 W

Flow Rate - 3962 GPH

Weight - 25.1 oz

Dimensions - 12.1"L x 3.15"W x 1.69"H

Rec. Aquarium Size - 13 - 118 US Gal

Max. Glass Thickness - 0.79" / 20mm

Power Supply - 100-240V/50-60Hz Input, 24V/2A Output




More Information
UPC 6971764810164
Manuals Product Manual
Variable Speed Yes
Control Type Digital DC Control (Controller Included)
Power Consumption 45W
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Product Questions

Is the rear magnet submersible, so it can be installed on the back wall of an all in one tank?
Question by: kyle larsen on Dec 13, 2023, 11:38 AM
All our magnets have a ceramic coating making them water resistant. However it is recommended to inspect your magnet frequently to look for damage, and remove it if you see any.
Answer by: Laura (BRS Staff) on Feb 7, 2024, 10:50 AM
Which size would be best for a basic rectangle 75gal mixed tank, the 2k or 4k?
Question by: Lee on Nov 3, 2023, 1:46 PM
Hey there,
Thank you for reaching out to us. You would want the 2k.

Please let me know if you need anything further and take care!
Answer by: Matt Lucero (BRS Staff) on Nov 16, 2023, 8:48 PM
Do these come with spare impellers for cleaning (also for a black option) or is it just the orange?
Question by: matthew schueneman on Mar 1, 2023, 11:28 AM
This will come with both a black set and orange set of blades.
Answer by: William Reed (BRS Staff) on Mar 23, 2023, 2:33 PM
Is there a battery backup you guys sell that this is compatible with this?
Question by: Chris on Oct 22, 2022, 7:26 PM
Answer by: William Reed (BRS Staff) on Nov 2, 2022, 2:54 PM
Hello, is it possible to combine these wavemaker ( master/slave)?
Question by: Max Pushakrev on Sep 20, 2022, 9:08 AM
No, the option to sync the gyres only comes with their XF series pumps.
Answer by: William Reed (BRS Staff) on Sep 22, 2022, 9:40 AM