A big workhorse in a small package. This model is rated for ponds up to 10,000 gallons with flow rates not over 90 gpm for bio-mechanical filtration. The 4.25 can handle fish loads of 225 lbs and comes complete with all 2" threaded fittings for maximum flow. Tank measures 24" X 35.5". System includes AlphaOne 4.25 Filter, Zapp Pure ZP5 UV and 3/4 HP-2 speed Pump, mounted on pad.
The AlphaBioONE Media was specially designed for this filter and this filter only. It is not something borrowed from another industry and used in the filter. Its design is unique in that it was not designed with "cross hairs" as some other specialty types of media use. We left those out because in a static bed the "cross hairs" can collect and hold debris until it becomes anaerobic. With the AlphaBioONE media there are no hidden areas for anaerobic bacteria, to harbor and stagnate, only beneficial bacteria.
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