Our range includes Pump-Fed Box Filters designed to sit above the pond water level, allowing filtered water to return via gravity. These systems typically utilise Multi-Stage Filtration, combining mechanical foams to trap solid waste with biological media to neutralise harmful toxins. Whether you require a compact Single-Bay Box Filter or a larger multi-media unit, our selection is built to withstand the elements and provide long-lasting performance.

Product Specifications

• Filter Type: Pump-fed, gravity-return mechanical and biological systems.
• Media Components: Graduated foam layers, carbon cartridges, and biological bio-balls or flocor.
• Construction: UV-stabilised, high-impact plastic housing.
• Inlet Sizes: Stepped hosetails typically accommodating 19mm, 25mm, 32mm, and 38mm flexible hose.
• Outlet Sizes: Large diameter gravity return pipes (typically 40mm to 50mm).

Selecting the correct Box Filter depends on your pond volume and the density of your fish stock. For instance, a pond with a surface area of 4m² requires a filter with sufficient flow capacity to process the water volume efficiently. At Southcoast Koi and Aquatics, we stock Pond Filter Boxes that are proven to deliver the oxygenation and cleanliness necessary for a thriving aquatic environment.