Ultima II Aqua Filter Series – To support aquatic life whether at an aquaculture facility, backyard pond or large aquarium system it is essential to remove both ammonia and accumulated debris. The most efficient way to accomplish this is by installing an Ultima II Biological Aqua Filter. The patented media has the highest biofilm surface for bacterial growth, these beneficial bacteria convert ammonia into harmless compounds. The dense bed of ridged media traps solids without clumping. Internal jets in the filter are activated during the backwash separating the waste from the media and sending it out the waste line.

The Ultima II Aqua Filter is available in four standard models suitable for ponds from 1,000 to 20,000 gallons capacity takes only minutes to backwash and can handle heavy fish and feed loads. Equipped with ‘cyclonic’ backwashing, Ultima II features Bio-Tube Aqua Media. These media are of tubular design, which aims to protect bacteria while dislodging unwanted debris. Also, lightweight in designed for very high flow rates.

The ‘Y’ shape and the inside wings on the outside affords a protective surface under the backwashing and the company’s patent-pending backwash system will keep the media from clogging. The same properties have been added to this media in three different sizes with random lengths and diameters to avoid stacking, one cubic foot of Ultima II Media is equal to 750 sqft of surface area. Cleaning the filter is done by internal jets. The Ultima II Aqua Filter tested and used by MIT (Massachusetts Institute of Technology) has outperformed the competition. Tested side-by-side against all bead filters on the market the Ultima II filters have been found to be “by far, the best,” claims the company.

The Ultima II Aqua Filter, which is seeded with bacteria, works like a centrifuge. The valve is rotated to backwash will set the filter into cyclonic motion. A valve located inside the filter closes, which then diverts the water through the jets sending the media spinning out to the walls of the filter, while dislodging the waste, causes it to separate and be sent out through the waste outlet.

The Ultima II Aqua Filter will work with any pump appropriate for the pond in question. The Ultima II’s Bio-Media with its patent-pending design is light enough so that the water from the pond will completely and quickly backwash the filter. Filters can be buried up to the valve top.


  • Simply set the valve to backwash and rinse
  • Internal jets do all the work for you
  • Never get your hands dirty


  • Highest area for growth of beneficial bacteria
  • Unique patented tubular design
  • Prevents clumping and channeling
  • Protects bacteria while dislodging unwanted debris
  • Pre-seeded with bacteria to start colonization quickly

Image result for ultima II sizing chart