ProLake4systems offer four powerful ½ horsepower compressors capable of delivering 21.2 cubic feet of air per minute to non-clogging, self-cleaning Duraplate™ diffusers. We top it all off with high volume cooling blowers, and fully adjustable, brushed aluminum manifolds. All housed in a durable, sound-deadening cabinet. The result is a high-end, energy efficient aeration system that will keep your pond clean and problem free for many years to come.