Comes with FREE 250ml ATB BioPellets Model: Alpha-2 Name: Biopellet Fluidize Reactor   The latest in BioPellet Reactor design from JNS. The new Biopellet Reactors have a fluidizing plate design to help keep the Biopellet  in suspension and evenly disperse the water upwards,The reactor includes special plate on the lid  to keep the  Biopellets within the reactor without sponges . • A class Acrylic Construction . • Highly Efficient, Durable, Reliable. • Simple to Set Up and Operate.   Watch on youtube •Footprint: 15 * 18 CM •Chamber Diameter: 10 CM • Capacity: 1.3 L •Height: 37 CM Comes with syncra adjustable 1.5 pump Please click on this link to view the reactor in action