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Cobalt International MJ Multi-Purpose Powerhead Pump

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Cobalt International MJ Multi-Purpose Powerhead Pump
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* Made in Italy for superior performance as powerhead or pump
* Built to perform reliably even under the harshest aquarium conditions
* Use as powerhead, wavemaker, or as protein skimmer calcium reactor or refugium pump

The ORIGINAL workhorse built to perform AND last! Cobalt International MJ multiuse submersible pump and powerhead brings back the superior Italian-made performance you've trusted and relied on in the past. Energy efficiency, versatile internal or external use in freshwater or saltwater marine aquariums PLUS easy-to-reconfigure design makes this multitasking pump great for tackling all your aquarium needs - even under the harshest aquarium conditions!

Cobalt International MJ Multi-Purpose Powerhead Pump is great for use with wave makers, protein skimmers, calcium reactors, nano aquariums, undergravel filters and any application where reliable water movement or circulation is essential.


  • Fully rotational output
  • Fully sealed intake for internal and external use
  • Universal intake tube
  • Adjustable hanger with cord guide and 6 ft power cord
  • Adjustable venturi with silencer
  • Triple suction cup mount
  • Large intake screen for use with sponge
  • 1/2" outlet in return pump mode

Model Max
MJ-400 110 29" 5
MJ-600 160 53" 7.5
MJ-900 230 46" 8.5
MJ-1200 295 69" 20

Shop all Aquarium Powerheads.

Please click on "More Information" for installation, maintenance and troubleshooting guide.

The Italian-made original with a new name

Special ends Thursday, May 28, 2015 @ 11:59 pm (CST)

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Please note: Return of electrical equipment to Drs. Foster & Smith for exchange or refund is limited to 60 days from the date of purchase. Beyond 60 days, please contact the manufacturer for repair or replacement as covered by the manufacturer's warranty.

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