24x24x4 MERV 8 Pleated HVAc Ac Furnace 4 Air Filters by Pamlico Air 3 Pack Actual Size: 23-38 x 23-38 x 3-3424 x 24 x 4 MERV 8, MPR 600, FPR 5 rated electrostatically charged medium efficiency air filters offer you the protection needed from dirty particles and contaminates while improving the air quality for your residential or commercial applicat..