ULTIMA II 6000 filter for ponds up to 6000 gallons.
Laguna Koi Ponds recommends for ponds up to 4000 gallons.
No channeling * Minutes to backwash * Can handle heavy fish loads * Seeded with bacteria * Filter can be buried * Unique tubular design protects bacteria while dislodging unwanted debris.
Features: 2" inlet and outlet Dimensions: 41" x 22.5"