20X20x1 Air Filter (12-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (6-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (4-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (6-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (12-Pack), Pleated MERV 13 Optimal Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (5-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (2-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (1-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (6-Pack), Pleated MERV 13 Optimal Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (12-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (5-Pack), Pleated MERV 13 Optimal Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (3-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (5-Pack), Pleated MERV 8 Dust Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

Filtrete 20X20x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4 Pack (

20X20x1 Air Filter (3-Pack), Pleated MERV 13 Optimal Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (4-Pack), Pleated MERV 13 Optimal Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

20X20x1 Air Filter (3-Pack), Pleated MERV 11 Allergen Defense HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 X 19.50 X 0.75 Inches)

Filtrete 20X20x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6 Pack (

Filtrete 20 X 20 X 1 Air Filter, 12 HVAC Filters, MPR 700, Merv 8, Dust, Pollen & Pet Dander, 3 Month Pleated 1 Inch Electrostatic Air Filters

Filtrete 20X20x1 AC Furnace Air Filter, MERV 5, MPR 300, Capture Unwanted Particles, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6-Pack

Nordic Pure MERV 8 Pleated Plus Carbon Furnace Air Filters, 20 X 20 X 1-In, 3 Count

20X20X1 Astro-Pleat MERV 8 Standard Pleated AC / Furnace Filter

Nordic Pure Pleated MERV 8 Air Filters, 20 X 20 X 1-In, 4 Count

20X20X1 Astro-Allergen Antimicrobial AC / Furnace Filter