Building on the MARINE X platform, the MARINE EX line features a low-profile external overflow system paired with professional-grade acrylic sumps—delivering a sleeker display and an advanced filtration layout. Marine-grade cabinetry offers superior corrosion resistance, making the MARINE EX perfect for serious reef keepers seeking both functionality and sophistication.
Max Your Aquascape.
The first Waterbox Aquarium® built with an external overflow system. Maximizing internal space and giving full creativity to aquascaping.
Ultra-Clear Glass
Built with ultra-clear glass panels ranging from 10mm to 12mm thickness for maximum durability, each aquarium is precision-bonded with high strength silicone to ensure a secure, watertight seal that stands up to the immense pressure of a filled system.
External Overflow & Drain System
Engineered with an external overflow that relocates all plumbing to the back of the aquarium—maximizing internal display space for aquascaping while delivering a clean, unobstructed viewing experience.
Space-Saving Central Overflow
A centralized overflow with dual return system streamlines water management while maximizing internal display volume—giving you more room to design expansive, intricate aquascapes.
Custom-Fit Mesh Lid
Precision-designed for the MARINE EX, the included mesh lid provides a secure barrier to prevent fish from jumping while maintaining maximum light penetration and airflow for a healthy aquatic environment.
Easy To Assemble Quick Connect
Our plumbing systems offer quick and easy assembly, while delivering high-performance results equivalent to those achieved through custom designs.
Pre-Engineered Quick Connect Fittings
Durable, high-quality quick connect fittings make plumbing assembly fast, secure, and tool-free. Saving you time and ensuring a leak-proof setup right out of the box.
Precision Overflow Valve
A high-performance gate valve on the main drain line lets you easily dial in and maintain a silent, balanced siphon for ultra-quiet operation and stable water levels.
Integrated Check Valve
A built-in check valve on the return line provides peace of mind by preventing backflow during pump shutdowns or power outages — protecting your sump from unexpected overflows.
All Acrylic Sump
Designed for the serious reefkeeper, the MARINE EX acrylic sump system redefines what advanced filtration should be—precise, efficient, and built to last.
Skimmer or Media Reactor Chamber
The spacious main chamber provides ample room for the industry’s leading protein skimmers and media reactors, giving you flexibility to choose the right equipment for your setup.
*Skimmer not included.
Filter Sock Filtration
Water first passes through dual felt filter socks that effectively remove debris and particulates. Each sock sits in a removable tray, allowing for quick maintenance or seamless conversion to a filter roller system for automated mechanical filtration.
Integrated RO Reservoir
In each sump is an Integrated freshwater reservoir, designed to hold RO/DI top-off water. This built-in feature maintains consistent water levels and salinity stability, helping your system remain balanced and reducing the need for frequent manual top-offs.
Strength and Durability
The MARINE EX stands on a marine-grade laminated cabinet that blends durability with contemporary design. Clean lines, adjustable leveling feet, and soft-close doors create a premium look and feel, while the spacious interior provides easy access to equipment and wiring.
Available in Black, White, or Aspen
Choose from modern finishes that complement any home or office space—because your aquarium deserves a foundation as refined as the ecosystem it holds.
Adjustable Leveling Feet
High weight capacity adjustable leveling feet ensure your aquarium is level, front to back and side-to-side.
Stainless Hinges
Corrosion-resistant and durable, making them ideal for marine aquariums. They stand up to saltwater humidity, ensure smooth operation, and provide long-lasting reliability.
| Product Model | MARINE EX 60.2 | MARINE EX 90.3 | MARINE EX 110.4 | |
|---|---|---|---|---|
| System | Height with Cabinet | 1,400mm/55.1" | 1,450mm/57.1" | 1,450mm/57.1" |
| Total Volume with RO | 207 L/54.7 gals | 337 L/89gals | 414 L/109.3 gals | |
| Total System Weight | - | - | - | |
| Display Tank |
Tank Dimensions | 600 x 500 x 500mm | 900 x 500 x 550mm | 1,200 x 500 x 550mm |
| 23.6"×19.7"×19.7" | 35.4"×19.7"×21.7" | 47.2"×19.7"×21.7" | ||
| Glass Thickness | 10mm (2/5") | 12mm (1/2") | 12mm (1/2") | |
| Aquarium Volume | 136 L/36 gals | 224 L/59.3 gals | 301 L/79.6 gals | |
| Aquarium Weight | 37.7 kg/83 lbs | 69.4 kg/153 lbs | 85.4 kg/188 lbs | |
| Glass Material | Ultra-clear Low Iron glass (front and sides) | |||
| Transmittance | 91% | |||
| Overflow Type | Acrylic External Overflow | |||
| In-cabinet Sump |
Dimensions | 510 x 410 x 380mm | 800 x 410 x 380mm | |
| 20.1" × 16.1" × 15" | 31.5" × 16.1 × 15" | |||
| Sump Volume | 71 L/18.7gals | 113 L/29.7 gals | ||
| Sump Weight | 9 kg/20 lbs | 12 kg/26 lbs | ||
| Acrylic Thickness | 5mm (3/16") | 5mm (3/16") | ||
| Skimmer Chamber (Internal Dimensions) |
265 x 245mm | 380 x 303mm | ||
| 10.4"×9.7" | 15"×11.9" | |||
| Skimmer Chamber (Cutout Dimensions) |
250 x 230mm | 367 x 287mm | ||
| 9.8"×9.1" | 14.4"×11.3" | |||
| Pump Chamber (Internal Dimensions) |
195 x 225mm | 225 x 225mm | ||
| 7.7"×8.9" | 8.9"×8.9" | |||
| Pump Chamber (Cutout Dimensions) |
162 x 211mm | 210 x 190mm | ||
| 6.4"×8.3" | 8.3"×7.5" | |||
| RO Reservoir (Cutout Dimensions) |
184 x 146mm | 212 x 146mm | ||
| 7.2"×5.7" | 8.3"×5.7" | |||
| RO Reservoir (Internal Dimensions) |
195 x 160mm | 225 x 160mm | ||
| 7.7"×6.3" | 8.9"×6.3" | |||
| RO Volume | 11.3 L/3 gals | 13.1 L/3.5 gals | ||
| Plumbing | Main Drain | DN20 (ID: 20mm OD: 25mm) | DN25 (ID: 25mm OD: 32mm) | |
| Emergency Overflow | DN20 (ID: 20mm OD: 25mm) | DN25 (ID: 25mm OD: 32mm) | ||
| Pump Return | DN20 (ID: 20mm OD: 25mm) | |||
| Nozzle(s) (Thread Size) | 2 x M20 (20mm) | |||
| Filtration | 225 Micron Fileter Socks | 1 x 105mm/4" FELT | 2 x 105mm/4" FELT | |
| Filter Sock Silencers | 1 x 105mm/4" | 2 x 105mm/4" | ||
| Cabinet | Cabinet Model | OSB 2420 | OSB 3620 | OSB 4820 |
| Cabinet Dimensions | 600 x 500 x 900mm | 900 x 500 x 900mm | 1,200 x 500 x 900mm | |
| 23.6" × 19.7" × 35.4" | 35.4" × 19.7" × 35.4" | 47.2" × 19.7" × 35.4" | ||
| Sump Compartment (Int. Dimensions) |
524 x 468 x 813mm | 824 x 448 x 813mm | 1,124 x 440 x 813mm | |
| 20.6" × 18.4" × 32" | 32.4" × 17.6" × 32" | 44.3" × 16.5" × 32" | ||
| Cabinet Framework | 18mm PVC Laminated Wood Oriented Strand Board | |||
| Door & Side Panels | ||||
| Bottom Panels | ||||
| Back Panels | ||||
| Cabinet Weight | - | - | - | |
| Cabinet Color | WHT-White, BLK-Black, ASP-Aspen | |||
