Evolution Aqua K+ MicroBead 18 Filter - 3600 Gal.

The K+ Micro Bead Filters is designed to allow the unrestricted flow of water through the unit. This helps lower the wattage of pump that can be used. Altogether, the K+ Micro Bead filters offer excellent mechanical filtration and tremendous biological performance. Features a clear 10" viewing dome for easy inspection.

Rather than using conventional beads as its principle filter media, it uses the K+ Micro media. It provides a better biological and mechanical filtration. This is because the K+ media has a vast surface area of 290 sq.ft. per cu.ft. This protected surface area safely houses beneficial bacteria and prevents them from being flushed to waste during the cleaning cycle. Only dead bacteria and waste debris will be discharged, preventing ammonia and nitrite spikes after maintenance.

Water is pumped into the filter from the pond, through a multi-port valve, this is where the internal pipework directs the water to the bottom of the unit. As the water flows upward, dirt and debris is trapped within the mass of K+ Micro filter media. The K+ Micro media (which provides a beneficial bacteria) delivers biological filtration. The filtered water flow back into the pipework at the top of the unit, through the multi-port valve, and back down the return line into the pond. It is easy to clean. Simply moving the handle on the multi-port valve into the corresponding positions to perform a backwash and rinse of the K+ Micro media.