Actual size: 23-3/8 inch x 23-3/8 inch x 3/4 inch;Merv 11 tested under ashrae 52.2-2007 standards;Ideal for those with moderate allergies;Moisture resistant, heavy-duty Frame;Galvanized expanded metal backing

• US Home Filter SC60-24X24X1-6 24x24x1 Merv 11 Pleated Air Filter , 24 x 24 x 1
• 24" x 24" x 1"

US Home Filter SC60-24X24X1-6 24x24x1 Merv 11 Pleated Air Filter , 24 x 24 x 1Midwest Supply Inc