Remove Pond Debris Fast with the Cetus Sieve
The Evolution Aqua Cetus Sieve is a self-adjusting pre-filter that removes large debris before it ever reaches your main pond filter. Reduce clogs, extend maintenance intervals, and get cleaner, healthier water from day one.
• Cut Maintenance in Half: Traps big debris upstream so your main filter stays cleaner for longer.
• Protects Biological Filtration: Clears organic waste that robs oxygen and slows bacteria development.
• Flexible Setup Options: Works on both gravity-fed and pump-fed pond systems.
• Compatible With Major Filters: Ideal for Nexus, EazyPod, and K+ Advanced pressure filters.
• Durable One-Piece Build: Rotationally molded composite body with no weld seams to crack or fail.
Discover the Cetus Sieve by Evolution Aqua Advantage
• Self-Adjusting Weir: Automatically regulates water height to prevent pump starvation.
• Simple Cleaning Routine: Waste collects on a 300-micron screen that rinses clean in seconds.
• Easy Hose Flush: Open the waste valve to instantly dump collected debris — no disassembly.
• Quick Connector Options: Flexible fittings for skimmers, drains, and return plumbing.
• No Special Tools Needed: Install, connect, and filter right out of the box.
How the Cetus Sieve Pre-Filter Protects Your Pump
• Boosts Filter Efficiency: Removes solid waste before it can clog media or pads.
• Improves Water Clarity: Less suspended debris means clearer, cleaner pond water.
• Reduces Backwashing: Cuts down on cleaning frequency for your main filter system.
• Supports Bigger Fish Loads: Handles heavy organics in koi ponds and stocked environments.
• Ideal For Skimmer Integration: Attach to a surface skimmer to grab leaves and floating debris fast.
Evolution Aqua Cetus Sieve: What Comes in the Box
Everything you need comes standard with your Evolution Aqua Cetus Sieve!
- Rotationally Molded Composite Sieve Body
- 300-micron Bow Screen Waste Filter
- Self-adjusting Weir with Patented Pondflow System
- Top and Bottom Flexible Connectors for Various Pipe Sizes
- Waste Port with Valve Connection
- Bellows Assembly for Flow Regulation
- Installation Fittings for Gravity-fed or Pump-fed Setups
- 2-year Manufacturer Warranty
- Installation Manual
Evolution Aqua Cetus Sieve Technical Specifications
| Feature | Detail |
| Dimensions | 33.9" L × 22.6" W × 37.2" H (86.1 × 57.4 × 94.5 cm) |
| Maximum Flow | 4,755 GPH 4,000 gallons / hour 18,000 L/hr |
| Inlet – Gravity Fed | 4" (110 mm) |
| Inlet – Pump Fed | 1.5" (38 mm) |
| Outlet – Gravity Fed | 1.5" (38 mm) |
| Outlet – Pump Fed | 4" (110 mm) |
| Waste Outlet | 3" (76 mm) |
| Bow Screen Size | 300 Micron (0.3 mm filtration) |
| Warranty | 2 Years |
Evolution Aqua Cetus Sieve Manuals:
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- Ships Only to Lower 48 States of the United States