Its the HOG.5 Santa Monica ATS
The HOG.5 is designed to handle this much feeding per day:
0.5 Frozen cubes, or
5 Pinches of flake, or
5 Square inches (31 square cm) of nori, or
1.4 grams of pellets
The number of gallons or liters of water does not matter. If you feed more than this, you can get multiple units; multiple units are preferred because you can clean one per week, and because you'll always have one filtering while the other starts growing again after a cleaning. Multiple units are also good for backup. The magnets attach the outside cover to the inside cover, through the aquarium wall, and can be used on glass or acrylic up to 1/4 inch (6.25 mm). Not more.
No electrical parts go inside the aquarium; only air. And the air bubbler is already supplied, so you don't have to get an airstone. This HOG.5 will run on both 120V and 240V, and comes with a 10 ft (300 cm) power cord with a U.S. plug. If you require a different plug you can get an adapter at any local hardware or travel store, or online, or you can cut off the U.S. plug install your own plug from a hardware store.
Comes with 3 ft (90 cm) of vinyl airline, but requires an air pump that can pump 1.0 liters per minute (.04 cfm), which most low-cost air pumps can handle. Make sure to put the air pump above the aquarium so that it will not drain any water if it shuts off.
Comes with one red (660 nm) 3-watt LED, which is attached to a heat sink inside the cover; the cover gets warm on the outside. The LED will give the aquarium a slight red color at night. You will need to get a timer so you can run the light for up to18 hours per day (not 24!). The LED never needs replacing.