For the 25-40 Gallon Range
The 2211, Classic 150, is perfect for my 29,30,and 37 gallon aquariums. The Classic 250 was a bit too powerful for my 30 gallon tank, made more more a 55. I like the sturdy base that comes with the 2211. Mine also came with filter media and valves.The 2211's are rugged and don't leak. The green tubes blend best in a planted aquarium.
Verified purchase: YesCondition: New