Red Sea ReefCan Auto Top Off Reservoir (40 L)

Red Sea ReefCan 40 L — Vertical ReefCan ATO Reservoir for organized RO Water storage

Red Sea ReefCan 40L is a vertical ReefCan ATO Reservoir for organized RO storage. Integrate it with Automate & Monitor workflows and ATOs for reliable daily stability.

Design that saves space — Red Sea ReefCan 40 L

This tall profile recovers cabinet capacity without crowding equipment. Use vertical height, not floor area, to store more RO water. This ATO Reservoir has enough water storage space to last you a while before needing to discard the liquid.

Clear level checks and clean routing

The transparent body and embedded scale show water levels at a glance. Front access supports quick refills with fewer drips. Rear access organizes tubes and cables for tidy routing. Seat ATO pumps up to 2.3 inches in the opening.

ReefCan ATO Reservoir integration with ReefATO+

It accommodates the ReefATO+ siphon breaker for a polished installation. Cables remain parked between services, so maintenance stays simple. Most third-party ATO systems also fit without modification.

Specifications — Red Sea ReefCan 40L (U.S. format)

• Capacity: 10.6 gallons

• Height: 22"

• Width: 7"

• Depth: 20"

• Pump opening: 2.3" diameter

Fit guide highlights — Red Sea ReefCan 40L

• Fits many REEFER G2/G2+ cabinets from 300 to 900.

• Works with REEFER MAX G2+ 300 and larger noted models.

• Supports Peninsula MAX 500 and larger; confirm stand height.

• Not compatible with REEFER G2 170/200/250/350.

• Not compatible with DESKTOP Cube and MAX NANO Cube.

• Note: ReefDose cannot mount on the Slide Out Control Panel.

Suggested placements for the Red Sea ReefCan

• Beside the sump for quick refills

• Against the stand wall for cable routing

• Clear of hinges and sliding trays

What’s included

• ReefCan 40L RO reservoir

Care tips — ReefCan ATO Reservoir

• Wipe the sight panel during water changes.

• Rinse the ATO pump monthly to limit salt creep.

• Label lines and maintain slack in the rear channel.

Frequently Asked Q&A — Red Sea ReefCan 40L

Q: Will the Red Sea ReefCan 40L fit standard stands?
A: Yes, in most full-height cabinets; confirm the 22-inch clearance.

Q: Does it require brackets or drilling?
A: No. The reservoir sits securely and routes lines through built-ins.

Q: Which ATO pumps will fit the opening?
A: Pumps up to 2.3 inches in diameter seat comfortably.

Q: Can levels be read without opening the lid?
A: Yes. The clear body and embedded scale provide instant visibility.

Q: Is it only for ReefATO+ users?
A: No. It optimizes ReefATO+ yet remains compatible with most ATOs.

Q: Does the tall shape reduce refill frequency?
A: Yes. The vertical design increases capacity without enlarging the footprint.

Q: Is a smaller version available?
A: Yes. ReefCan 18 suits tighter cabinets.

Q: Will cabinet heat or humidity cause warping?
A: No. The body resists typical stand temperatures and moisture.

Bottom line

Choose vertical, visible, and tidy. The ReefCan 40L streamlines RO water storage.

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