Mainstream’s plenum fans offer superior air handling capabilities, and are designed to meet a diverse range of commercial and industrial applications. Mainstream plenum fans can be offered with aluminum, stainless steel or composite impellers, and a range of different motor options. Designed for high efficiency at a wide range of operating points, most plenum fans are capable of achieving over 13” of total static pressure. All plenum fans can be utilized in standalone applications or in a multi-fan array.