Red Sea Reefer 425 G3 - White Cabinet

Red Sea Reefer 425 G3 - White Cabinet

The Red Sea Reefer 425 G3 - White Cabinet is a premium 433 litre / 114.4 gallon reef-ready aquarium and cabinet system that combines Red Sea’s larger euro-braced REEFER G3 display with a bright white marine-spec cabinet.

This 120 cm base REEFER G3 system is designed for aquarists who want a serious reef-ready tank, sump, cabinet, and plumbing platform while choosing their preferred light, pump, skimmer, heater, flow, dosing, and control equipment separately. It includes a euro-braced ultra-clear glass aquarium, white marine-spec plywood cabinet, REEF-SPEC sump, ReefMat-ready mechanical filtration chamber, pre-assembled plumbing, ReefGate precision valve, central overflow with removable surface skimmer, curved dual return nozzles, and integrated ReefATO+ smart top-off control.

Red Sea REEFER 425 G3 White Reef System

• Large euro-braced REEFER platform: The 425 G3 offers 433 L of total system volume and a substantial 120 cm by 60 cm display for aquarists wanting more reef capacity.
• White cabinet finish: The white marine-spec cabinet gives the larger aquarium a clean, modern, lighter visual profile.
• 114.4 gallon total volume: The larger volume supports better stability and more flexible livestock, coral, and filtration planning than smaller systems.
• Custom equipment selection: The base REEFER format lets customers choose the return pump, skimmer, lighting, heater, wavemakers, and automation that best fit their reef.
• Euro-braced display strength: The 425 is part of Red Sea’s G3 euro-braced range for additional structural support on larger aquariums.
• Strong long-term reef foundation: The system provides enough size and sump capacity for a refined mixed reef or coral-focused custom build.

120 cm Ultra-Clear Euro-Braced Display

• 343 litre display volume: The larger display gives aquarists more space for coral colonies, rockwork, open swimming lanes, and long-term growth.
• 60 cm display depth: The wider footprint makes it easier to build a natural-looking reef with depth, open space, islands, ledges, and multiple coral zones.
• Euro-braced glass construction: The braced format adds strength while keeping the system clean and professional looking.
• Glass thickness specification: The 425 G3 is listed with 12 mm front glass, 15 mm side glass, 12 mm bottom glass, and 12 mm back glass.
• Ultra-clear viewing panels: Low-iron glass supports a cleaner view of coral fluorescence, fish colour, and aquascape detail.
• White cabinet styling: The cabinet creates a bright furniture-style presentation while keeping equipment hidden below the display.

G3 Water Management and ReefGate Tuning

• Optimized G3 plumbing: The redesigned water-management system improves circulation efficiency and supports better water movement through the sump.
• Quiet downflow system: The rectangular downflow inlet is designed to reduce turbulence and operating noise.
• ReefGate precision valve: Fine drain control allows the overflow and sump level to be tuned for quiet consistent performance.
• Surface-skimming overflow: The central overflow includes a removable surface skimmer that helps pull film and floating debris into the filtration system.
• Curved dual returns: Improved return nozzles help spread water across the larger display footprint.
• Pre-assembled plumbing: Included pipework provides a clean, factory-designed installation path for the drain and return system.

Large REEF-SPEC Sump and ReefATO+

• 90 litre sump: The in-cabinet sump provides generous space for return equipment, skimmer selection, mechanical filtration, media, reactors, dosing, and monitoring.
• ReefMat-ready mechanical chamber: The sump includes micron socks and media cups and is designed for optional Red Sea ReefMat installation.
• Integrated ReefATO+: ReefATO+ helps manage evaporation-driven water level changes and salinity stability while adding temperature monitoring and leak detection.
• Flexible filtration planning: The sump can support a simple mixed reef or a more advanced equipment-heavy system depending on customer goals.
• Cleaner service access: The cabinet sump makes skimmer maintenance, filter service, equipment swaps, and dosing-line routing more practical.
• Red Sea ecosystem ready: Optional ReefRun, ReefLED, ReefWave, ReefDose, ReefMat, REEFER skimmers, and ReefBeat-connected devices can be added as the reef evolves.

Red Sea Reefer 425 G3 White Specifications

• Total system volume: 433 L / 114.4 gal.
• Display volume: 343 L / 90.6 gal.
• Sump volume: 90 L / 23.8 gal.
• Display dimensions: 120 cm L x 60 cm W x 55 cm H / approx. 47.2 x 23.6 x 21.7 in.
• Total height with cabinet: 142 cm / approx. 55.9 in.
• Glass thickness: 12 mm front glass, 15 mm side glass, 12 mm bottom glass, 12 mm back glass.
• Display format: Euro-braced ultra-clear glass aquarium.
• Cabinet: White marine-spec plywood cabinet with leveling feet.
• Filtration: REEF-SPEC sump with mechanical chamber, micron socks, media cups, ReefMat-ready layout, and ReefATO+.
• Recommended return pump: Red Sea ReefRun G2 6000, sold separately.
• Recommended lighting: 2 x Red Sea ReefLED G2 170, sold separately.
• Recommended ReefMat: Red Sea ReefMat 500, sold separately.

Application Notes for the REEFER 425 G3 White

• Best use: Ideal for larger mixed reef aquariums, LPS coral displays, soft coral systems, and custom reef builds requiring more water volume and depth.
• Lighting planning: Choose reef lighting for full 120 cm by 60 cm coverage based on coral goals and mounting preference.
• Flow planning: Add wavemakers to support broad circulation beyond the dual returns, especially for dense rockwork or SPS-heavy sections.
• Filtration planning: The 90 L sump gives space for a skimmer, media, probes, dosing lines, and optional ReefMat filtration.
• Base package advantage: This system is best for customers who want the Red Sea tank and sump infrastructure but prefer selecting their own equipment package.
• Not included: Lighting, return pump, protein skimmer, heater, wavemakers, livestock, rock, sand, salt, optional ReefMat, dosing equipment, and test kits are sold separately unless otherwise stated.