Rotary drum filters (RDFs) are the pinnacle of automatic mechanical filtration for koi ponds. A fine stainless-steel screen captures debris as water flows through, and a self-cleaning spray bar washes the screen continuously — no manual cleaning required. Play It Koi carries RDFs from Evolution Aqua, FREEDrum, and other premium manufacturers, plus gravity-fed sieve units for budget-conscious builds.
RDF vs. Sieve
RDFs are fully automatic and ideal for large, heavily stocked koi ponds. Sieves use a static screen that requires periodic manual cleaning but cost significantly less. Both deliver superior mechanical filtration compared to foam pads. Pro tip: pair any drum filter or sieve with a dedicated biological stage (moving bed chamber or bakki shower) for a complete two-stage filtration system.
Play It Koi offers free shipping on orders over $99. Questions? Contact our pond experts for RDF recommendations.
