A fluidising reactor, intended for use with different types of filter media, It works perfectly as a reactor for Phosphate Absorbers, Activated Carbon and Zeolites. Thanks to the compact dimensions, it can be used both internally in the sump or externally. The Reactor is made entirely from high quality – 100% acrylic, making it resistant to damage and discolouration. We used a silicone seal which protects the filter against leakage. Inside the filter are sponges that prevent the passage of filter medium outside the filter housing (important in the case of resins or absorbers – like GFO). Important thing is also that our media reactors are very solid and nicely made. We recommend the use of 3 Aquaforest Media, Zeo Mix, Carbon and Phosphate Minus in combination.