Quote: Now the new ECO ALC 240 is just like the ECO ALC 120 in regards to the types of fans and pump/block unit. The only difference is the larger radia tor. The ECO ALC 240 is a self-contained, sealed loop CPU water cooler. Wit h the unit being sealed there is no need for the system coolant to be fille d or topped off like a custom water cooling loop would require due to water evaporating from the coolant reservoir. This maintenance free operation is also one of the attractions for some users to use self-contained units. Article Title: CoolIT Systems ECO A.L.C. 240 CPU Cooler Review @ Legit Revi ews