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ECCO LINE SUMPS are in-stock and ready to ship with no lead time.

The ECCO Line Sumps are designed to be the last sump you’ll ever buy - feature-rich, modular, and built to grow with you as your reef system and the hobby evolve. Thoughtful engineering allows the ECCO design to function effectively as either a Berlin-style or Triton-style sump, giving you flexibility in filtration methodology from day one.

The ECCO-3415 Sump  is engineered for reef and saltwater systems that demand performance, flexibility, and clean organization in a compact footprint. Constructed from durable 3/8″ thick acrylic on the top rim and sides to resist warping, it features a professional modular layout with dedicated chambers for mechanical filtration, protein skimming, and return flow — enabling efficient staged filtration and quiet operation.

Designed to support popular roller filtration systems - including Clarisea SK-3000 & SK-5000 Gen 3, Smarter Reefs AIO units, and the Red Sea ReefMat 500 (18″ models required for ReefMat 1200 compatibility) - the ECCO-3415 is built for long-term adaptability. Advanced features include an optional filter sock plate for mechanical filtration choice, adjustable water height, a silent submerged inlet, removable bubble trap, swappable and expandable bulkhead plates, dual heater holders, and integrated probe and dosing ports, making upgrades and customization simple.

Finished in a sleek black or white acrylic body with colored accents, the ECCO-3415 delivers serious filtration capability in a refined, minimalist design - start smart, finish strong, and give your reef everything it needs to thrive.

Roller filtration systems sold separately.

FEATURES:

• Sleek minimalist design with colored accents
• Heavy-duty construction with 3/8″ thick top rim and sides for added strength and warp resistance
• Dual heater holders included for clean, secure heater placement
• Optional flush drop-in polycarbonate lid for a clean, finished look
• Expandable inlet bulkhead array allows both the inlet and return chambers to support 1″ or 1.5″ bulkheads
• Sump includes four 1″ bulkheads (1.5″ bulkheads sold separately)
• Submerged inlet design for silent, efficient operation
• Original removable bubble trap system allows operation with or without the bubble trap for increased return chamber space
• Includes a standard adjustable wall plate for trap-free operation
• Bubble trap assembly features a removable media slide tray and locks securely at the desired water level using durable black nylon hardware
• Integrated probe holder with rubber grommets to isolate electrical noise and ensure accurate readings
• Four 5/8″ ports for optional 1/4″ push-connect dosing lines
• Cord ports with covers keep wiring clean, organized, and out of sight
  

QUICK SPECS:

• Overall dimensions: 34″ L × 15″ W × 15″ H
• Roller chamber: 10″ × 14.25″
• Skimmer chamber: 13″ × 14.25″
• Return chamber: 10″ × 14.25″
• Total system volume: 29.74 gallons
• Adjustable water level: 6″–10″
• Inlet & return bulkheads: (2) 1″ or 1.5″
• Heater holders: Dual (included)
• Probe holder: Yes
• Dosing ports: (4) × 5/8″
• Cord ports: Yes