SeaSide Aquatics Combi RDF Filters

Sea Side Aquatics Combi Filters combine self-cleaning rotary drum filtration and biological filtration in one integrated system. The rotary drum automatically removes solid waste and debris from the water before it flows into the biological filtration stage. Depending on the model, biological filtration is provided by moving-bed K1 media, Matala filter media, a Bakki shower, or a combination of these methods to help maintain clean, healthy pond water.

Which Combi Filter Is Right For You?

C-22 TF (Max Pond Size 15,000 GPH)
A compact pump fed drum filter and Bakki shower combination that provides automatic mechanical filtration followed by shower style biological filtration. A good choice when a gravity fed installation isn’t practical.

C-22 Combi (Max Pond Size 15,000 GPH)
A compact all in one system combining a self cleaning rotary drum filter with a moving bed biological chamber. A straightforward choice for smaller koi ponds looking for automatic mechanical and biological filtration in one unit.

Entry C-25 (Max Pond Size 10,000 Gallons)
A step up in capacity while keeping the Combi system relatively compact. The rotary drum handles solids removal while the integrated moving bed provides biological filtration, making it a versatile option for many koi pond installations.

Entry C-25 LOW (Max Pond Size 10,000 Gallons)
A low profile version of the Entry C-25 designed for installations where height or equipment space is limited. It combines automatic drum filtration and moving bed biological filtration in a shallower package. Only available in Gravity Feed.

Entry M25 (Max Pond Size 10,000 Gallons)
Adds Matala biological filtration alongside the moving-bed chamber, providing additional biological filtration surface area. A good option when you want more bio capacity without moving into the larger Combi systems.

CL-35 WiFi (Max Pond Size 22,000 Gallons)
A higher-capacity Combi featuring automatic rotary drum filtration, a large biological chamber, and WiFi-enabled controls. Well suited to larger koi ponds where increased flow and biological capacity are needed.

CL-35 L (Max Pond Size 22,000 Gallons)
The larger bio version of the CL-35 platform, providing more room for biological filtration while retaining automatic drum cleaning and WiFi control. A strong choice for ponds with heavier fish loads.

C-35 M (Max Pond Size 22,000 Gallons)
Combines a rotary drum with a 200-liter moving bed and a large Matala mat chamber, giving you two forms of biological filtration in one system. Particularly useful for koi ponds where biological capacity is a priority.

CL-65 WiFi (Max Pond Size 40,000 Gallons)
A large-capacity Combi designed for higher-flow koi ponds, combining automatic drum filtration with substantial moving-bed biological filtration and WiFi-enabled controls.

CL-65 M (Max Pond Size 40,000 Gallons) 
Builds on the CL-65 platform with an expanded biological filtration chamber, making it better suited for larger ponds and heavier koi populations that demand more bio capacity.

CL-65 L (Max Pond Size 40,000 Gallons)
The biological-filtration configuration in the CL-65 family, designed for demanding koi ponds where maximum biological capacity is the priority while maintaining automatic drum filtration and WiFi control.

Pick your model, then choose Gravity Fed or Pump Fed. All flow figures below are maximum gravity-fed ratings; a pump-fed unit is rated roughly 30% lower, so size up if you are pumping into the filter.

Where a model shows “per factory drawing,” inlet and outlet positions are configurable and set on the build drawing. Reach out and we will confirm the plumbing for your build.

What’s included

• Self-cleaning rotary drum with a woven stainless-steel screen (75 or 120 micron by model)
• Integrated biological stage (moving-bed K1, Matala mat, or bakki shower by model)
• Digital control box with automatic and manual cleaning; WiFi control on WiFi models
• Drive motor, spray bar, and removable waste gutter