Maxi-Jet® Multi-Use Water Pump

Product VideoPlay
Product No. ML90509-01
Find a Store In Stock

Maxi-Jet® multi-use water pumps are three pumps in one: power head, utility pump, and now featuring a circulation pump option.  Still the best power head for powering undergravel filters and running wave maker timers, as well as for running small fountains, calcium reactors and skimmers. 

The Maxi-Jet also contains an in-box conversion kit, which can turn the power head into a prop style circulation pump for ultimate water movement inside the aquarium--using the least amount of energy!  The Maxi-Jet is the most fully adaptable pump available.

Maxi-Jet® Multi-Use Water Pump is rated 2.9 out of 5 by 36.
Rated 4 out of 5 by from I like it I have had the Marineland Powerheads for a lot of years now! I have used them in many different compassity . They have never failed me and I`m looking to buy more.You have to clean them... like anything else....Thier the BEST!!!
Date published: 2018-03-14
Rated 5 out of 5 by from Great Product with an incredible warantee While defective pumps can happen occasionally, I always buy Maxijet pumps for all my saltwater applications... I recently received a bad pump, and in practically NO TIME had a new one on my doorstep. My tank is happy, the pump is working GREAT, and knowing Marineland has my back is a huge benefit that makes the purchase worth every penny!
Date published: 2018-03-07
Rated 5 out of 5 by from Best 3 in 1 on the market!!! I am currently using two 400, four 600, two 900, and have two 1200. For fresh water shrimp breeding tanks as water circulation devices on sponge filters and diy in tank filtration on all my larger twenty to thirty gallon setups.I have also used these pumps for water circulation in my turthe tanks and planted tanks. As well as using them for utility pumps to fill my tanks when setting up new aquariums.These three in one style pumps are by far the best bang for your buck on the market today. If used propely will last a lifetime, well maybe not a lifetime, but close to it.I highly recommend these pumps there amazing!!
Date published: 2018-01-21
Rated 4 out of 5 by from moves a good amount of water in my 75 gallon just installed it and didn't even need instructions for assembly only reason I didn't give 5 stars is I wish it came with a foam sleeve as I have small fish
Date published: 2017-08-12
Rated 1 out of 5 by from Broken Impeller after One Month Got the MJ400 to pump water in my small tank. One month of use and every single impeller blade is broken off at the base. So I have 6 little orange squares that I have to find in the tank now. Not satisfied with the quality of this product. I'm not running a crazy setup either. The pump is set about mid-way in the tank pumping water 2 feet higher. These should be MUCH more durable.
Date published: 2017-07-23
Rated 1 out of 5 by from It runs in reverse (Marineland Maxi Jets 1200) I bought this a year ago at PetSmart. I am using this for water circulation using part 6 and 7. The Properler runs sometimes in reverse. I clean it several times and still runs in reverse.
Date published: 2017-02-20
Rated 4 out of 5 by from Little to no air coming out I bought this maxijet 400 about 4 months ago and it worked fine with the air coming out. Now the only time I get air is when I have the pump basically right at the top of the water. Any help would be much appreciated thanks.
Date published: 2017-02-15
Rated 4 out of 5 by from Work Good But.... I love this product, I have it working on my 55 gallon Marineland start up i purchased on December 2015,I purchased the 600 model about 8 months ago, It was working as the wave maker set up but about two months ago when i switch to the power head with the air tube connection it work good for a while but now it make a grinding sound, if i switch back to the propeller stile it works fine no noise at all. Really don't know what to do to fix it if you guys could I would appreciate a help.
Date published: 2017-01-18
  • y_2018, m_3, d_18, h_4
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.7
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_36
  • loc_en_US, sid_ML90509, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_marineland

May I buy directly from you the products that I need :-))

Asked by: Sharon Wilson
We appreciate your interest in our products, but no, we do not sell direct. You would need to go through local fish or pet shops, as well as there are a lot of online vendors that carry them, such as Amazon, Pet Solutions, Pet Mountain, Chewy, That Fish Place and Drs. Foster and Smith. BREX
Answered by: BREX
Date published: 2018-03-14

looking for filter pump pfes 12

Asked by: paul59
Unfortunately, that is no longer available. The kit was discontinued 7-8 years ago. BREX
Answered by: BREX
Date published: 2018-02-21

I am in the process of setting up a 45 Gallon bow front tank. Wondering what size and how many of this brand power heads i should have. Also where in my tank should they be placed? Already purchased 1 maxi-jet 600. Thanks!!

Asked by: MKits1397
That really depends on what your goal is for adding these to the tank. Is this a reef tank with corals and you want flow going back and forth over them? Then you would want a minimum of two, one at each end at different levels. The 600 model may be enough, unless you have corals that need some serious movement. If it is a freshwater tank then two of the 600s should be more than enough to provide additional water movement and oxygen. If you have good surface movement already, then place them nearer the bottom to move the water from bottom to top. What size and how many really does depend on your goal, but two 600s would be considered a minimum in most cases. (including the Penguin) BREX
Answered by: BREX
Date published: 2018-02-06

I would like to know if you still offer parts for the magnum 350 and the 250HS

Asked by: Don601
Yes, both are offered on our site. BREX
Answered by: BREX
Date published: 2018-02-02

the propeller stuters when it starts up.. makes a grinding sound .. how can i correct?

Asked by: new reef keeper
If you are using this in the propeller phase, and have it attached to a timer or wavemaker, this is normal. As the propeller changes direction, it will make a sound for about 10 seconds that cannot be eliminated. BREX
Answered by: BREX
Date published: 2018-02-02

Have a maxi jet 1200. It is super noisy. Is this normal

Asked by: Jaytee
No, should be silent if it is installed correctly and does not need cleaning. Should be fully submerged. Pull out the impeller and make sure it hasn't pulled something into it like grit or plant matter. BREX
Answered by: BREX
Date published: 2018-01-15

I'd like to set up a pump arrangement with a UV sterilizer. What size hose will I need with a Maxi Jet 900/1200? What adapters come with the unit?

Asked by: Mario J
1/2" is the size tubing. It doesn't come with any adapters for a UV light. Most folks use utility pumps or canisters. BREX
Answered by: BREX
Date published: 2018-01-11

I have had the Portrait 5 gallon for two years and want to have a replacement pump on hand should the original die. What is my best option to use with that setup? Thank!

Asked by: peces
Simply call 1-800-322-1266 to order one. BREX
Answered by: BREX
Date published: 2018-01-08
  • y_2018, m_3, d_18, h_4CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.7
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_86
  • loc_en_US, sid_ML90509, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_marineland
ML90509 - Maxi-Jet 400 - 110-500 GPH
ML90510 - Maxi-Jet 600 - 160-750 GPH
ML90511 - Maxi-Jet 900 - 230-1000 GPH
ML90512 - Maxi-Jet 1200 - 295-1300 GPH

 Maxi-Jets Manual


Power Head Mode 

Circulation Mode 

Utility Mode 





Max Head Height 

Maxi Jet 400 






Maxi Jet 600 






Maxi Jet 900 






Maxi Jet 1200