Sieve Filters

Protect your downstream biological filtration and achieve outstanding water clarity with our range of high-performance pond sieve filters and mechanical pre-filtration units. Widely trusted by serious koi keepers and pond builders, sieve filters provide dependable, non-motorised solids separation, trapping coarse debris and fish waste before it can reach your circulation pump or biological media chambers.

Our collection features heavy-duty polypropylene sieve units equipped with precision curved stainless steel wedge-wire screens designed for both gravity-fed and pump-fed installations. Utilizing an auto-adjusting floating weir to regulate incoming water levels, the system glides water across the screen surface, capturing suspended particles down to 200 or 300 microns and dropping them into a dry catchment area outside the water flow. This prevents trapped waste from decaying and releasing harmful dissolved toxins into your system. Routine maintenance takes just seconds by using the integrated waste valve to flush debris away. Explore our complete sieve filters collection to equip your pond setup with robust, energy-free pre-filtration engineered for maximum biological efficiency and crystal-clear results.