Evolution Aqua K Plus (K+) Pressure Filters - formerly called K1 Micro Bead Filters K1MBF K+PF

The K+ Pressure Filters (formerly K1 Micro Bead filters) are a game-changing filtration system that completely re-invents the bead filter. It is designed to allow the unrestricted flow of water through the unit, meaning that a lower wattage pump can be used, which can save you money.   The K1 and K+ filters use a blower to save water and clean more thoroughly during backwashing.   Now the new K+ media is re-engineered to offer excellent mechanical filtration and tremendous biological performance.    All models feature a clear 10" viewing dome for easy inspection.

K+ Micro Biological Media
Rather than using conventional beads as its principle filter media, Evolution Aqua uses K+ media.  This provides better biological and mechanical filtration since the K+ media has a vast surface area.  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. This prevents ammonia and nitrite spikes after maintenance.

How the K+ Micro Bead Filter Works
Water is pumped into the filter from the pond, through a multi-port valve 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. The filter is incredibly easy to clean, by simply moving the handle on the multi-port valve into the corresponding positions to perform a backwash and rinse of the K+ media.