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

Fluidized Media Reactor

28 reviews
$ 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, base 4.75"
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, base 5.25"
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, base 7.5"
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
4.9 Based on 28 Reviews
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Terence O.
Philippines Philippines
Unsmooth Surfaces

I bought the mr10 and mr16 reactors and I was not satisfied with them. Both items has unsmooth top cover and base and others. Sure, these would not affect the item’s performance. But given the fact that I bought them brandnew, I was not expecting these spots of bother. Just my two cents.

Avast Marine Works Fluidized Media Reactor ReviewAvast Marine Works Fluidized Media Reactor ReviewAvast Marine Works Fluidized Media Reactor Review
Best Reactor!

This is the best reactor. Very good quality!

Brad M.
United States
MR5 reactor

Very well built. Coming from a tlf phosban reactor there is no comparison. Avast marine hands down is the superior product. Very water tight and the additional screens for different media is an added bonus!!

Avast Marine Works Fluidized Media Reactor Review
Richard M.
United States
Works great

Was looking for a new reactor and saw that Avast was well regarded and prices were very competitive.. So ordered one which arrived in a couple of days. Was simple to set up and has worked great ever since. Would definitely recommend their products.

New Hampshire, United States
A+ Everything

A+ Customer Service A+ Product Cant wait until my next order with Avast