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Spyglass Reactor Kit
Spyglass Reactor Kit
Spyglass Reactor Kit
Spyglass Reactor Kit
Spyglass Reactor Kit

Spyglass Reactor Kit

25 reviews
$ 119.99


The newest reactor from Avast Marine now available as a DIY Kit! 

We have worked for quite some time to develop the most comprehensive media reactor feature set.  Combining gentle and complete fluidization, recirculating or single pass configuration options, media versatility, exceptional energy efficiency, and easy and quick maintenance into a design that is simply beautiful to watch, we present the Spyglass fluidized cone reactors.



The elegant and silent waterfall design eliminates the need for piping and fittings, yielding a footprint that will fit nicely in the smallest areas of your sump.  The Spyglass is for internal use only and can be used with a variety of media.  From the lightest resin type media like Purigen, to small pelleted Rox 0.8 carbon and GFO all the way up to the heaviest All in One Biopellets, we include a variety of mesh screens to ensure you have everything required to use virtually all media on the market today.  Additionally, we include the parts you need to configure this reactor as a single pass or recirculating chamber.  Simply choose one of three reactor sizes and corresponding optional Sicce pump.  If you prefer to use an external feed from an overflow or tee from an existing pump, this is easily done with parts included with every Spyglass.



The steep cone on the bottom enables complete fluidization using the smallest and most energy efficient pumps on the market.  This translates to less heat in your sump and fewer kilowatt-hours on your monthly utility bill. 



The way the reactor is effortlessly serviced will be appreciated by everyone.  There are no thumbscrews, no tubing and not even a union.  The reactor simply lifts off the base and the media screen is held in place with a press fit o-ring inside the reactor.  No need to even unplug anything; you can lift the Spyglass chamber right off with the pump running! No significant amount of media is lost out the bottom due to our custom made weighted silicone ball and optional fine mesh that sits in the bottom of the cone.  This acts as a check valve of sorts and effectively retains media with minimal cleaning. Changing out media has never been so hassle free!  We've also created a special rinsing lid that makes a quick job of flushing out carbon or GFO before use.

Building the kit

Spyglass Instruction Manual

Note that the pictures show the optional Sicce pump, but the reactors do not include one by default. 


Customer Reviews
4.9 Based on 25 Reviews
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Michael T.
United States


I am mighty pleased wit' the spyglass. It works better than any I 'ave trired thank ye

David H.
United States United States

Easy to use

Kit was easy to put together. Added GFO and carbon simple to adjust will take a bit to get my gfo amount correct I am going down to 1/4 the amount recommended

Marci B.
United States United States

Spyglass reactor kit

The kit was easy to put together once I found the video. Maybe some direction on where to find that would be helpful. I got the small unit and the nano pump’s two front suction cups sit on the circular opening in the base, so they don’t auction to it. However, this doesn’t affect the performance at all.

United States United States

Jame's Reef

Just built it (a you build kit) and it was high quality and easy to assemble if you have basic skills. I have not used it yet as I'm in the process of starting a new reef tank but I know it will b great based on my hands-on and it's reviews by other users.

David R.
United States United States

SpyGlass you built is excellent!

The experience so far has been perfect. Exactly what I was looking for. I had a few questions before and after purchase, all were answered quickly which was much appreciated. I’d recommend to anyone to take on building this, it’s easy and an instant sense of gratification.