Red Sea
Red Sea Reefer 425 G3
Red Sea Reefer 425 G3
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Red Sea REEFER 425 G3
The Red Sea REEFER 425 G3 is a standout large-format reef aquarium system engineered for serious hobbyists who demand clarity, scale, and longevity. Featuring approximately 90.6 gallons (343 L) of display volume and a sturdy euro-braced build, this model is built to perform in demanding reef environments.
With thick, ultra-clear, low-iron glass panels (reinforced for models 425 and above), a marine-spec plywood cabinet chassis, and top-tier plumbing design, the G3 series elevates your reef setup to the next level. It delivers:
- A silent downflow system that minimizes noise and turbulence
- Hydrodynamically optimized plumbing that supports up to 50% more water circulation than previous models
- A high-precision gate valve for fine control and quiet flow adjustment
- A ReefATO+ system for automated top-off, temperature monitoring, and leak detection
The REEFER 425 G3 is ideal for large mixed-reef or SPS-dominated setups, offering both the space and infrastructure for professional-grade coral growth and display.
Technical Specifications
| Specification | Data |
| Display Volume | ~90.6 gallons / 343 L |
| Total System Volume (including sump/plumbing) | ~114.4 gallons / 433 L |
| Approx Display Dimensions | 47.2″ L × 23.6″ W × 21.7″ H |
| Glass Type & Build | Ultra-clear low-iron glass with euro-bracing (models 425+) |
| Cabinet / Stand | Marine-spec plywood with leveling feet |
| Plumbing & Flow | Optimized dual-return outlets, silent downflow, precision gate valve |
| Smart Features | ReefATO+ (ATO, temp sensor, leak detector) |
| Ideal For | Large mixed reefs, LPS/SPS gardens, advanced aquascapes |
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