1-888-9-WEBPETS
(1-888-993-2738)
Certified Seal
Dogs Cats Fish Birds Reptiles Small Pets Pond
Cobalt Aquatics MJ400 Multi-Purpose Powerhead/Pump
Click to Image Zoom

More Views

  • Cobalt Aquatics MJ400 Multi-Purpose Powerhead/Pump
  • Cobalt Aquatics MJ400 Multi-Purpose Powerhead/Pump

Cobalt Aquatics MJ400 Multi-Purpose Powerhead/Pump

In stock: Order by 2PM EDT for same-day shipping (M-F only)

Item #: 3C00057

$29.99
Add to Wishlist

Quick Overview

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 a...
Product Description
Reviews

Cobalt Aquatics MJ400 Multi-Purpose Powerhead/Pump Information



Part #: 30000

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. Fits 1/2" ID vinyl tubing

Model Watt
120v-60Hz
Max Flow
(gph/lph)
Max Height
(in / m)
MJ400 5 106 (400) 29" (.73m)
MJ600 7.5 160 (600) 53" (1.35m)
MJ900 8.5 230 (870) 46" (1.17m)
MJ1200 20 295 (1100) 69" (1.74m)


+ Display More
- Display Less

Cobalt Aquatics MJ400 Multi-Purpose Powerhead/Pump Reviews

Average Reviews

Customer Reviews

Seems as good as old Maxi-Jet Product Review by MICHAEL TURKSMA (Posted on 3/1/14)
Rating
Excellent!

Comments: Seems as good as the old "Maxi-Jet" branded power heads w/ a couple new features such as an o-ring on the impellar housing. So far so good. Time will tell.

multi-purpose pump Product Review by GREG MICHAEL (Posted on 2/26/14)
Rating
Excellent!

Comments: Cobalt multi-purpose pump is a very good inexpensvie pump. I am in the plumbing business and I checked around to find a better price and a pump local. The only local pumps to do the gpm and head pressure I needed were double in price. The pump I use is in a 6ft head water fall and it does a superior job and is small enough to lay in the base of the water fall.

Perfect upgrade return Product Review by ROBERT LAHART (Posted on 1/13/14)
Rating
Excellent!

Comments: After getting advice from fellow reefers on whether or not to upgrade the stock return on my IM Nuvo16 I purchased this. The turn over rate of my tank increased from 211GPH to 295GPH. It is just as quiet as the stock return pump and only slightly bigger. So far so good.

undergravel filter powerhead Product Review by RANDY RIECK (Posted on 1/11/14)
Rating
Excellent!

Comments: This powerhead is ideal for undergravel filters in 30 to 55 gallon tanks. A product like this was hard for me to find. I am using it for my fresh water tanks and do not need a powerful flow of water. 106 gallons of water per hour flow is just about right for the undergravel filter attachment. My fish will not be buffeted by a strong water flow. The extra parts inlcuded with the device were useful.

Quality Product Review by ROBERT MORETTI (Posted on 10/22/13)
Rating
Excellent!

Comments: I have had reef aquariums for over 20 years so I have been around a bit. Point being that I have many different setups to this point. I was nervous to order a new replacement after my second MaxJet had gone out. I use these in my 29 gallon Bio. After speaking with a representative at the Depot, these were highly recommended. I just put them in a few days ago and can tell that they are good quality. Very quiet which is important.

Items Similar to Cobalt Aquatics MJ400 Multi-Purpose Powerhead/Pump