MJ Multi-Purpose Powerhead/Pump

Price
$ 46.47
Size:MJ400

The Original MJ multi-use submersible pump and power head is built to perform and last under the harshest conditions. Ideal for wave makers, protein skimmers, calcium reactors, nano aquariums, under gravel filters and hydroponic applications.


Includes:

  1. Fully rotational output
  2. Fully sealed intake for internal and external use
  3. Universal intake tube
  4. Adjustable hanger with cord guide and 6ft power cord
  5. Adjustable venturi with silencer
  6. Triple suction cup mount
  7. Large intake screen for use with sponge
  8. 1/2” OD output connection
  9. 3/4” OD intake connection

Cobalt Aquatics MJ Powerheads Comparison

Model

Flow Rate

Max. Head Pressure

Watts

MJ400 106 GPH 29" 5
MJ600 160 GPH 53" 7.5
MJ900 230 GPH 46" 8.5
MJ1200 295 GPH 69" 20


SPECIAL NOTE for REACTOR users:
The MJ pump is the perfect pump for use with reactors on reef aquariums. One thing to understand is that reef aquariums have high levels of calcium, in fact at almost saturation levels, and areas with slightly higher temperatures can have active and dramatic precipitation of calcium on parts, ie impellers and impeller shafts. In as little as 4-5 months, calcium can build up enough to stop an MJ pump. Calcium build up is NOT covered by the warranty, but is easily kept in check with routine maintenance. Every 2-3 months, take out the MJ and remove the impeller, soak in distilled vinegar for 15-20 mins, then scrub parts with an old toothbrush and work the impeller up and down shaft to break up and mineral deposits. Rinse with fresh water and re-install impeller and MJ into system. This simple maintenance will keep your MJ running like new for years.

Download Manual

 Cobalt MJ Cleaning

Shipping Information

Shipping is restricted to the United States and Canada. Due to size and weight restrictions of some shipping carriers, items may be shipped in different containers than advertised. Please allow 48-72 business hours for orders to be processed.

Free Shipping is offered at checkout for all orders that exceed $99 and are shipped to a location within the continental United States of America. Due to weight and size, some items are not included in the Free Shipping promotion. This includes ReeFlowers Salts and Sands, Cobalt C-Vue Aquariums and Stands, and others.

C-Vue aquariums and stands are shipped with flat rate shipping rates, are not eligible for free shipping, and are restricted to the continental USA. Shipping rates are $60 for our 18g and 26g C-Vue aquariums and stands, while our 40g and 45g aquariums and stands ship for $100. Shipping rates are cumulative, as such shipping will be charged for each aquarium/stand added to your cart. Due to their size, some tanks may be shipped via a freight company. If this is the case then an appointment for delivery may be required by the freight company prior to delivery.

C-Vue Shipping Rates

18g/26g Tanks and Stands - $60 each

40g/45g/50g Tanks and Stands - $100 each 

If your shipment is visibly damaged upon receipt, have the delivery person note this at the time of delivery. If you are not completely satisfied with your purchase, items may be returned within 30 days of purchase and will be exchanged or credited.

Items must be in original condition and accompanied by the original receipt or date of purchase. Please click on the SUPPORT button to contact our technical staff for a Return Authorization Number.

Upon receipt, returns will be credited for the original price of the merchandise, fees may apply.

For any questions regarding shipping promotions or rates, please click on the support button to contact a customer service representative.

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