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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-3418 Rollermat Sump (White) is a high-capacity, roller-ready sump engineered for reef and saltwater systems that demand performance, flexibility, and clean organization. Constructed from robust 3/8″ thick acrylic on the top rim and sides to prevent warping, it features a professional modular layout with dedicated chambers for roller filtration, protein skimming, and return flow, enabling efficient staged filtration and quiet operation.

Designed to support major roller filtration systems - including Clarisea SK-3000 & SK-5000 Gen 3, Smarter Reefs AIO units, and Red Sea ReefMat 500 or 1200 - the ECCO-3418 is built for long-term adaptability. Advanced features include an optional filter sock plate for mechanical filtration flexibility, adjustable water height, a silent submerged inlet, a removable bubble trap, swappable and expandable bulkhead plates, dual heater holders, and integrated probe and dosing ports, making upgrades and customization simple.

With its sleek white acrylic finish, the ECCO-3418 Rollermat Sump delivers professional performance in a refined footprint - start smart, finish strong, and give your reef everything it needs to thrive.

Rollermat sold separately

FEATURES:

• Sleek white or black acrylic body with durable 3/8″ thick acrylic walls for strength and warp resistance
• High-capacity, roller-ready sump designed for reef and saltwater systems
• Modular layout with dedicated chambers for roller filtration, protein skimming, and return flow
• Supports major rollermat filtration systems (sold separately)
• Adjustable water height for flexible equipment tuning
• Submerged inlet design for quieter, more efficient operation
• Optional dual 4″ filter sock holders for mechanical filtration flexibility
• Original removable bubble trap allows operation with or without bubble control, increasing usable return chamber space
• Expandable inlet and return bulkheads support 1″ or 1.5″ plumbing configurations
• Integrated probe holder with rubber grommets for accurate sensor readings
• Four 5/8″ dosing ports for clean dosing line routing
• Cord ports with covers for organized cable management
• Dual heater holders included