The Whisper Quiet Fan option is available for the Series 3000 cooling tower. It reduces sound levels up to 19 dBA and is Cooling Technology Institute (CTI) certified. The axial fan blades are constructed of high-grade marine alloy aluminum, for rugged construction and corrosion resistance. The heavy-duty aluminum fans require minimal maintenance, making them well suited for use in cooling tower applications that benefit from extremely low
sound operation.