Sea Side Aquatics Entry C25 Combi Filter RDF Self-Cleaning 6600 GPH up to 10,000 Gallons

Cleaner Pond Water With the Sea Side Aquatics Entry C25 RDF Filter

Tired of murky water and clogged filters that never seem to keep up? Your pond deserves better. This all-in-one unit tackles both debris and waste breakdown in one automated system, pulling dirty water through a rotating drum that traps particles down to 75 microns and flushes them away on its own. No hand-scrubbing, no guesswork. Just clear, healthy water for ponds up to 10,000 gallons.

• All-in-one filtration: combines mechanical and biological filtration in a single self-cleaning unit.
• Debris removal: rotating drum traps particles down to 75 microns and flushes them out automatically.
• Pond size: handles ponds up to 10,000 gallons with a max flow of 6,600 GPH.
• Biological filtration: air-driven fluidized bed with 90 liters of Helix media keeps bacteria oxygenated and active.
• Feed flexibility: works with gravity, airlift, or pump-fed setups (pump-fed loses about 30% flow).
• Hands-free operation: plug and play control box with automatic cleaning cycle and manual override options.
• Durable build: CNC-machined polypropylene housing paired with stainless steel 316/304 hardware.
• Easy upkeep: modular parts allow quick swaps without replacing the whole unit.
• Included with purchase: k1 media, external cleaning pump, lid, and a full setup manual.

Rotating Drum Keeps the Sea Side Aquatics Entry C25 Pond Filter Self-Cleaning

At the heart of this filter sits a rotating drum that does the dirty work for you. Water enters and passes through a fine stainless steel sieve panel, catching particles before they cloud your pond. The wrapped drum comes packed with K1 media visible in the lower right chamber, ready to go once installed.

• Drum size: 38 cm x 40 cm diameter
• Sieve panel: 120 or 75 micron stainless steel 316
• Automatic rinse: a row of red spray nozzles held by black clamps along the flushing spray bar flush trapped debris out through the waste water outlet
• Drive motor: 40 NM with 2.5 rpm rotation
• Two demountable spray bars mounted across the compartments and a removable flushing channel for easy access
• A waste channel opening on the left wall of the drum compartment, with plumbing elbows along the left wall and a control junction box below the drum

The whole process runs hands-free, so your screen stays clear without you lifting a finger.

Air-Powered Biological Filtration

Once the debris is gone, the water moves into a fluidized bed of media kept in motion by air. This keeps the beneficial bacteria fed with oxygen while breaking down dissolved waste your drum can't catch.

• Bio chamber holds 90 liters of Helix media
• Round black 34 cm air disc mounted on the floor drives oxygenation and keeps the media moving
• Includes k1 media to get you started
• Chamber features a vertical rising pipe (wrapped in packaging), a white handle grip, and plumbing valves along the base for easy handling and control

The result is water that's both physically clean and biologically balanced, giving your fish a healthier place to live.

Flexible Feeding Options for the Sea Side Aquatics Entry C25 Combi Filter

Set it up the way your pond is built. This unit works with gravity, airlift, or pump-fed configurations, so it fits into most layouts.

• Max flow: 6,600 GPH
• Pump-fed note: expect roughly 30% flow loss when running pump-fed
• Installation height: 16 cm above water level
• Standard inputs and outputs according to the drawing, plus a 2 x 90 mm drum bypass and a 110 mm waste water outlet

Plug And Play Control Box

Running the system is simple. The plug and play control box, marked with the branded seahorse logo, handles the cleaning cycle automatically using a stainless steel float, and you can step in manually whenever you want.

• Red on/off rotary switch and a dedicated manual cleaning button for hands-on turn and rinse control
• Manual turn and rinse control at the press of a button
• Adjustable turn and flush time to match your pond's load
• Adjustable rinse level for precise water use
• Three labelled power sockets for the drum filter motor, cleaning pump, and circulation pump (flushing pump, pond pump, and drum drive motor), plus a sensor socket
• Dry run protection built in for the pond pump

Modular Repairs Keep the Sea Side Aquatics Entry C25 Drum Filter Running

Longevity was designed in from the start. The housing is CNC-machined polypropylene, paired with corrosion-resistant stainless steel and silicone seals.

• Housing: PP 8 mm / PP 15 mm, with a PP 20 drum
• Metal parts: stainless steel 316/304
• Silicone seal for a tight fit
• Comes with a lid to keep the system covered
• Every part is built in modules, so worn components swap out quickly

When something needs replacing, you change the module instead of the whole unit.

What's Included

Everything you need to get running comes in the box:

• k1 media for the bio chamber
• External cleaning pump (required for operation)
• Full manual to walk you through setup

Product Specs

Product Attachments

Sea Side Aquatics Entry C25 Quick Guide