Filtrete

Filtrete 20x20x1 AC Furnace Air Filter, MERV 12, MPR 1500, CERTIFIED asthma & allergy friendly, 3 Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6-Pack (Actual Size 19.69x19.69x0.78 in)

Filtrete

Filtrete 20x20x1 AC Furnace Air Filter, MERV 13, MPR 1900, Premium Allergen, Bacteria & Virus Filter, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2-Pack (Actual Size 19.69x19.69x0.78 in)

Filtrete

Filtrete 20x20x1 AC Furnace Air Filter, MERV 13, MPR 1900, Premium Allergen, Bacteria & Virus Filter, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4-Pack (Actual Size 19.69x19.69x0.78 in)

Filtrete

Filtrete 20x20x1 AC Furnace Air Filter, MERV 13, MPR 2200, Elite Allergen, Bacteria & Virus Filter, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 2-Pack (Actual Size 19.719x19.719x0.78 in)

Filtrete

Filtrete 20x20x1 AC Furnace Air Filter, MERV 13, MPR 2200, Elite Allergen, Bacteria & Virus Filter, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6-Pack (Actual Size 19.69x19.69x0.78 in)

Filtrete

Filtrete 20x20x1 AC Furnace Air Filter, MERV 5, MPR 300, Capture Unwanted Particles, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6-Pack (Actual Size 19.69x19.69x0.81 in)

Filtrete

Filtrete 20x20x1 AC Furnace Air Filter, MERV 8, MPR 700, Tough on Pollen, Easy on Airflow, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4-Pack (Actual Size 19.880 x 19.880 x 0.78 in )

Filtrete

Filtrete 20x20x1 Air Filter, 3M MERV 5 HVAC AC Furnace Filter Replacement, 6-Pack (Actual Size 19.69x19.69x0.88 in)

Filtrete

Filtrete 20x20x1 Air Filter, MPR 1200, MERV 11, Allergen Defense Odor Reduction 3-Month Pleated 1-Inch Air Filters, 2 Filters

Filtrete

Filtrete 20x20x1 Air Filter, MPR 2800, MERV 14, Healthy Living Ultrafine Particle Reduction 3-Month Pleated 1-Inch Air Filters, 2 Filters

Filtrete

Filtrete 20x20x4 AC Furnace Air Filter, MERV 13, MPR 1900, Premium Allergen, Bacteria & Virus Filter, Electrostatic Air Cleaning Filter, 2-Pack (Actual Size 19.75 x 19.75 x 4.31 in)

Filtrete

Filtrete 20x20x4 AC Furnace Air Filter, MPR 1550, MERV 12, Fits Honeywell, CERTIFIED Asthma & Allergy Friendly, Electrostatic Air Cleaning Filter, 2-Pack (actual size 19.88 x 19.88 x 4.31)

Filtrete

Filtrete 20x20x4 AC Furnace Air Filter, MPR 1550, MERV 12, Fits Lennox & Honeywell, Allergen, Electrostatic Air Cleaning Filter, 4-Pack (actual size 19.88 x 19.88 x 4.31)

Filtrete

Filtrete 20x20x4 Air Filter, MPR 1000, MERV 11, Allergen Defense 12-Month Deep Pleated 4-Inch Air Filters, 2 Filters

Filtrete

Filtrete 20x21.5x1 AC Furnace Air Filter, MERV 8, MPR 700, Tough on Pollen, Easy on Airflow, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4-Pack (Actual Size 19.69 x 21.19 x 0.81 in)

Filtrete

Filtrete 20x22x1 AC Furnace Air Filter, MERV 11, MPR 1000, Micro Allergen Defense, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4-Pack (Actual Size 19.81 x 21.81 x 0.81 in)