Koch 111 710 00212x24x12 Standard Turbine Air Filter, Single Header (2 pcs) voomi_id_8683 The Control Devices R700 3 4 valve P91000 The Control Devices R700 3 4 valve offers a reliable solution for connecting plumbing and HVAC components housed in a NEMA 48 rolled steel frame Maxi Cell High Efficiency Barrier Filter Engineered for Turbomachinery Air Inlet Systems MERV 14 Performance High efficiency barrier filter designed for use in gas turbine air inlets and other rotating machinery Durable metal frame Faceguards upstream and downstream Progressive density filter media extends filter lifecycles Double Edge™ aluminum separators Superior filtration for gas turbines air inlets and other high velocity rotating equipment Reliable performance in any climate Performs in systems with airflow as high as 2500 cfm Widely used by OEM’s around the world Koch Filter’s Maxi Cell is an extended surface in even the most extreme applications