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Fluidized Media Reactor
Fluidized Media Reactor
Fluidized Media Reactor
Fluidized Media Reactor

Fluidized Media Reactor

$ 94.99
Our fluidized media reactor is designed to efficiently filter water with a variety of media types. The reactor includes 2 types of filter pads for retaining different media types such as activated carbon or granular ferric oxide (GFO).  The included mesh disks make this reactor an excellent choice for fluidizing larger grained carbon.  The mesh disks don't clog and are the correct size to keep larger size carbon and some GFO types contained above the disk.  If you're using very fine grained media such as ROX 0.8 carbon, then you'll want to use the foam pads that also ship with the reactor, or a mesh bag.  Also included is a flow control valve, 5 feet of soft tubing for pump attachment, and barbed union disconnect fittings.  The MR5, our small sized reactor, only has room for one union connection; the output fitting is a vertical barb fitting.  In all sizes, both barbed fittings are 1/2" NPT, threaded into the lid.

For Biopellet use, we recommend our optional Biopellet Nozzle which provides excellent pellet movement and no clogging.  This nozzle replaces the bottom media plate and mesh disk.  We recommend keeping the top screen in place to prevent floating pellets from escaping.

Click Here to Download the User Manual

Technical Data:


Footprint: 5.75" round 
Height: 17"
Media Capacity: 5 Cups
Input/Output: 1/2" barbed union fittings (union on input side only)
Recommended Pump: Sicce 1.0 or 1.5


Footprint: 7" round
Height: 17.5" 
Media Capacity: 10 Cups 
Input/Output: 1/2" barbed union fittings
Recommended Pump: Sicce 1.5 or 2.0


Footprint: 9" round 
Overall Height: 17.5"
Media Capacity: 16 Cups
Input/Output: 3/4" barbed union fittings
Recommended Pump: Sicce 2.0 or 3.0


Customer Reviews

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  • Reviews (17)
  • Questions (4)

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darren d.
United States

Great customer service

They where great took care of all my needs the reactors are awesome

Jon Sharp
United States

Great product

I honestly had a bit of trouble getting it started. The instructions are printed only, and it takes a bit of interpretation. However, the reactor is built great, and once I figured it out, was easy to adjust to exactly the flow I wanted. Changeout of media is very easy. Would highly recommend.

Nick Frick
United States

Great product!!

I now own numerous avast products, and they all work great. Used this media reactor as a second chamber for my calcium reactor. Worked exactly as I had planned.


Beautiful, Simplistic and it Works!

I purchased the MR5 to use for scrub my ozone air and water. I love how easy it is to change the media and to rinse it out. Its a nice simplistic design, but it works and its very affordable! LOVE IT!

Michael grady

Carbon/GFO reactors

I use these reactors on a 500 gallon reef. They are very well built, easy to set up and make it very easy to change media. For the serious reefer -they get an A plus from me.