18x24x4 MicroMAX Air FilterMERV 13, Single Header, Koch 120-721-005 (3 pcs) voomi_id_55323 Its durable steel construction with

Its durable steel construction with a black oxide finish resists corrosion

Rated MERV 11 for effective particle capture

is an essential component in maintaining the correct operation of HVAC systems

It operates at an EER of 13

18x24x4 MicroMAX Air FilterMERV 13, Single Header, Koch 120-721-005 (3 pcs) voomi_id_55323 Its durable steel construction withExtended Surface Minipleat Filter Minipleat Design Galvanized Metal Frame Efficiency Range 80 85% (MERV 13) Lightweight Construction The Koch MicroMAX is an extended surface minipleat filter designed for use in a wide variety of air filtration systems. The MicroMAX offers a unique combination of high efficiency and low pressure drop making it the ideal filter for use in any standard HVAC system. The added advantages of its compact 4 depth and