AF OceanGuard 275 Aquarium (48 Gallon) – Dark Grey

**Special Offer** — For a limited time, all purchases of AF OceanGuard Aquariums will include a FREE Starter Pack! No extra action is required to redeem this offer– Simply add any Oceanguard Aquarium to your cart and your order will also include the following:

• • 1x Reef Salt 8kg/17.6lb Bag
  • 1x Life Bio Fil 1200ml/40.57 fl. oz.
  • 1x Bio S 50ml/1.7 fl. oz.
  • 1x Phosphate Minus 1000ml/35.19 fl. oz.
  • 1x Fish V 50ml/1.7 fl. oz.
  • 1x Carbon 1000ml/35.19 fl. oz.
  • 1x TestPro Nitrate (1 set; up to 40 tests)
  • 1x TestPro Alkalinity (1 set; up to 100 tests)
  • 1x Component A 200ml Bottle
  • 1x Component B 200ml Bottle
  • 1x Component C 200ml Bottle
  • 1x KH Plus 200ml/6.76 fl. oz.

 

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The Aquaforest OceanGuard series of aquarium systems is the result of collaboration between the best engineers and marine aquarists in the business. From its crystal-clear OptiWhite glass to its durable waterproof cabinetry and smartly-designed cascading filtration chambers, the OceanGuard offers experience-based solutions to deliver the most optimal reefkeeping experience. 

• Ultra-silent operation
• Waterproof, corrosion-resistant design for marine applications
• Tank, anti-vibrational foam mats, overflow box, plumbing, sump, and cabinet included
• Timeless, minimalistic design with interchangeable exterior panels for easy color changes
• Pre-assembled cabinetry constructed from marine yacht technology
• Guaranteed B31-certified safety with 4-year warranty

 

The Display Tank

• Highest transparency OptiWhite low-iron glass
• Durable rimless design tested by marine aquarists
• Even glass surface with distortion-free viewing
• Easy-to-clean and scratch-resistant
• All-black overflow, bottom, and rear glass
• Proprietary black silicone joints with guaranteed high water-tightness
• Professional antivibrational foam leveling mat

The Cabinet

• Waterproof high-pressure, marine-grade plywood construction
• Will not swell, absorb water, nor warp over time
• Corrosion-resistant to salt spray and chemical residue
• High-resistance joints with premium Japanese stainless steel hinges and A2 stainless steel screws
• Minimalistic design with interchangeable external cabinet panels for easy color changes
• Arrives pre-assembled for guaranteed reliability
• Designed to withstand up to 10x the weight of competitor stands

The Plumbing & Sump

• Durable PVC with dedicated hydraulics
• Increased pipe diameters for high system output
• Smartly designed cascading filtration chambers with filter socks
• Quick installation– no glue required
• Emergency pipe and quality gate valve for precise adjustment
• Self-leveling with quiet downflow
• Check valve to prevent water from flowing into the sump
• Near-silent downflow

 

Specifications

Dimensions

• Aquarium – 23.6″L x 21.7″W x 21.7″H
• Cabinet – 23.6″L x 21.7″W x 37″H
• Sump – 19.7″L x 16.3″W x 17.9″H
  • Return Pump Chamber – 8.27″L x 4.61″W
  • Skimmer Chamber – 8.27″L x 7.64″W (9.21″W without baffle)
  • Filter Chamber – 3.94″L x 13.94″W
  • RO Chamber – 2.95″L x 6.89″W

Volume

• Display Tank – 48 US Gallons
• System – 73 US Gallons

Plumbing

• Downpipe – 32mm
• Return Pump – 20mm
• Safety Drain – 25mm

Recommended Water Flow – 528-660 GPH

Recommended Skimmer – AF150 IN

Recommended Media Reactor – AF90 Media Reactor

Glass Thickness – 10mm (3/8″)