A reliable pond filter box is one of the most popular and effective methods for maintaining a clear and healthy aquatic environment. These units sit above the water level and rely on gravity to return clean water to your pond. Pond filter boxes remove fish waste and debris from your pond, helping provide your fish with a healthy environment. By removing waste and debris, these filters help balance your pond’s ecosystem by retaining essential biological bacteria. Whether you are looking for a standard model or a pond filter box with UV light to eliminate green water, our range is designed to deliver crystal-clear water, helping your fish and plants flourish. With options from leading brands, like Lotus, Oase and Hozelock, finding the right filter box for pond maintenance is simple and efficient.

Pond Filter Box with UV Light Options

For those battling persistent green water, many of our pond filter boxes are available as UV filter boxes with a built-in UV clarifier. The integrated UV light targets and clumps together single-celled algae, which are the main cause of green water. Once clumped, the algae is then easily captured by the mechanical filtration media within the pond box filter. This combination is essential for combating green water and maintaining long-term clarity in your pond.

Why choose a pond box filter? 

Pond box filters are a staple in pond keeping, favoured for their ease of use and accessibility. These systems are pump-fed, meaning a pump in the pond pushes water up into the box, where it passes through various mechanical and biological media before returning to the pond via gravity. This process removes waste and debris that prevent harmful toxins from building up, which is essential for your fish's well-being. To ensure your filter operates efficiently, you will need a compatible pump to feed it. Browse our range of pond pumps to find the perfect match for your new filter box.

For more information, read our comparison guide on box filters and pressurised filters. 

If you are unsure which filter box is right for you, please don't hesitate to get in touch with our experienced sales team on 01642 612419, who can advise on the perfect filter for your needs.

Pond & Aquarium Guides