Laguna PT1744 Pressure Flo 4000 Pond filter Kit complete with corresponding 2400gph/9000L pump, built in 24w UV sterilizing light and bio-media lava rock, easy back wash system, Ideal for 4000 gallon ponds with light fish load.
ASK Farms uses 1 of these same filter in our 7123 Gallon in conjunction with a bog and light fish loads. Available at ASK Farms My Koi Water Gardens for in-store or online purchasing