Aeration SystemNorweco Model 225LNorweco’s Singulair Green HDPE and Singulair concrete advanced treatment units are available with the Model 225L low-profile aerator. Based on the 206C aerator, the Model 225L low-profile aerator features a modified bracket design, lifting handle and aspirator shaft, allowing for a 6-inch reduction of the height of the risers over the Singulair systems. This makes it the ideal option for projects in areas with high water tables or similar challenges that necessitate a shallow burial depth. Because its ANSI/NSF certifications require it to be in operation only half the time, it has a much longer operational life
