This is Draco’s take on a combi system to allow you the consumer to have the ultimate choice as to what you want to specify for your particular set-up. As it is modular they are easy for a single person to move them around and they can even be offset when installed. The Bio unit inlets are designed to perfectly match up to our Stand alone solum RDF’s outlets. You can choose any combination you would like. We can also provide the stand for the drum to sit on so it is at the perfect height for the bio side of the filter but equally you don’t have to purchase this if you would prefer to sort out your own block work. All come with the 4” connectors required. Solum 16 & Standard bio: Capable of filtering ponds up to 3000 gallons (58 micron screen) Or filtering ponds up to 4500 gallons (77 micron screen) Solum 16 & Large bio: Capable of filtering ponds upto 4500 gallons (58micron screen) Or filtering ponds up to 6000 gallons (77 micron screen) Solum 25 & Standard bio: Capable of filtering ponds up to 6000 gallons (58 micron screen) Or filtering ponds up to 7500 gallons (77 micron screen) Solum 25 & Large bio: Capable of filtering ponds up to 9000 gallons (58 micron screen) Or filtering ponds up to 12000 gallons (77 micron screen) *Although a 77 micron screen allows additional water flow it also allows larger particulates through thus your water will appear to have less polish and may longer to clear an already established pond.