Red Sea ReefCan Auto Top Off Reservoir 18L

Red Sea ReefCan Auto Top Off Reservoir 18L

Red Sea ReefCan Auto Top Off Reservoir 18L is a tall, slim RO water reservoir for reef and marine aquarists who want more top-up water stored in a small footprint. It is designed to hold the ReefATO+ system, and it suits most other auto top-off setups too. That makes it a practical fit for tight aquarium cabinets.

Key Benefits

• Space-saving vertical design: it uses the unused height inside your aquarium cabinet, so you store more RO water without enlarging the footprint of your system.
• Clear visibility: the durable, transparent body has a precisely embedded water scale, so you can check the level at a glance without opening the reservoir.
• Easy installation and maintenance: front and rear openings keep setup and routine upkeep quick, with no juggling of tubes and cables.
• ReefATO+ ready: it is engineered to accommodate the ReefATO+ system, including its syphon breaker.
• Wide pump compatibility: the rear access point takes any ATO pump up to 2.3" (5.8 cm) in diameter.

How to Use

Use the front opening to refill the reservoir with RO water. The rear opening is for managing the cables and tubes of your auto top-off system, and it is large enough for an ATO pump up to 2.3" (5.8 cm) in diameter. Once the cables are set up, you only need to disconnect them for occasional pump maintenance. Read the water level on the embedded scale through the transparent body.

Suitable For

• Reef and marine aquarists who want to maximise RO water storage without giving up floor space.
• ReefATO+ users. The ReefCan is designed to hold the ReefATO+ syphon breaker.
• Aquarists running most other ATO systems who want a compact, easy-to-service reservoir with convenient cable and tube access.

Compatibility

Compatibility with Red Sea aquariums (ReefCan 18):

• Reefer G2/G2+ 170, 200, 250, 300, 350, 425, 525, 625, 750, 900: compatible
• Reefer G2/G2+ S-850, S-100: compatible
• Reefer Max 170 G2+, 200 G2+: not compatible
• Reefer Max 250, 300, 350, 425, 524, 625, 750, 900 G2+: compatible
• Reefer Max S-550, S-700, S-850, S-1000 G2+: compatible
• Peninsula Max 350, 500 G2+: compatible
• Peninsula Max S-700, S-950 G2+: compatible
• Desktop Cube: not compatible
• Desktop Peninsula: compatible
• Max Nano Cube: not compatible
• Max Nano Peninsula, XL: compatible
• Max E-170, E-260: compatible
• Max S-400, S-500, S-650: compatible

Please note: on the ReefMax 300 G2+, the ReefDose cannot be mounted on the Slide Out Control Panel when the ReefCan is in use.

Specifications

• Volume: 18 litres (4.8 gal)
• Height: 55.9 cm (22")
• Width: 8.9 cm (3.5")
• Depth: 43.2 cm (17")
• Pump opening size: 5.8 cm (2.3") diameter

What's Included

• 1 x ReefCan 18L RO reservoir

Frequently Asked Questions

How much water does the ReefCan hold?
It holds 18 litres (4.8 gal) of RO water. The vertical design gets that volume into a body only 8.9 cm (3.5") wide.

What size ATO pump fits in the rear opening?
The rear access point accommodates any ATO pump with a diameter of up to 2.3" (5.8 cm).

Does it only work with the ReefATO+?
No. It suits most ATO systems, but it is specifically designed to hold the ReefATO+ syphon breaker. Once the cables are set up, you only need to disconnect them for occasional pump maintenance.

Will it fit in a Reefer Max 170 G2+ or 200 G2+ cabinet?
No. The ReefCan 18 is not compatible with the Reefer Max 170 G2+ and 200 G2+. It is also not compatible with the Desktop Cube or the Max Nano Cube.

Can I use it with the ReefMax 300 G2+ and a ReefDose?
The ReefCan is compatible with the Reefer Max 300 G2+. However, the ReefDose cannot be mounted on the Slide Out Control Panel when the ReefCan is in use.

How do I check how much RO water is left?
The transparent body has an embedded water scale, so you can read the level from outside without opening the reservoir.

When can I expect delivery?

• Gauteng (Jhb/Pta) - 1-3 working days
• Nationwide (Cpt/Dbn+) - 2-5 working days
• Outlying Areas - 3-7 working days

All orders are sent via Economy Road, typically through Fastway or Internet Express Couriers*. Estimated timeframes are not guaranteed. Once the order is collected by the courier, we have no control over third-party logistics and cannot make any time promises.

If you prefer a faster 🚀 shipping option, we also offer The Courier Guy during checkout in the dropdown selection. Please note that this option is not free, and you must choose it to use it. Please pay careful attention to the cutoff times and delivery timeframe for these options during checkout.

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No more waiting at home or at work for your delivery. Simply choose a collection locker or pickup point and collect your order when it suits you.

Delivery times to lockers and pickup locations typically range from 2–7 working days, depending on your location.*

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Collection timeframes:

• Bob Box: Collect within 2 days of receiving your collection notification.
• PUDO Lockers: Collect within 36 hours of receiving your collection PIN or SMS notification.

If a PUDO parcel is not collected within 36 hours, it will automatically be transferred to the nearest PUDO Kiosk or Depot at no additional cost. The parcel will then be held there for approximately 2 days before being returned.

Please ensure you collect your parcel within the applicable collection period. Uncollected parcels will be returned to the sender, and additional shipping charges may apply should the order need to be resent.