Filtrete deals

Every Filtrete product we track, with the ones currently below their normal price first.

Products tracked

On sale now

Best discount

31%

Median price

$32.67

9 deals · 11 more tracked

8% offDropped today

Filtrete

Filtrete 20x25x5 Air Filter, MERV 12, MPR 1550, 1 HVAC Filter | Allergen, Bacteria & Virus, 12-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 19.56x24.13x4.75 in)

$30.99~~$33.99~~

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Size: 4.7" x 24.2" x 19.6"

Price checked Oct 19, 2026, 9:26 AM PDT

10% off

Filtrete

Filtrete 20x25x4 Air Filter, MERV 12, MPR 1550, 2 HVAC Filters | Allergen, Bacteria & Virus, 12-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 19.88x24.63x4.31 in)

$44.99~~$49.99~~

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Size: 20x25x4

Price checked Oct 19, 2026, 11:30 AM PDT

10% off

Filtrete

Filtrete 16x25x1 Air Filter, MERV 11, MPR 1000, 2 HVAC Filters | Allergens & Pet Dander, 3-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 15.68x24.68x0.81 in)

$19.79~~$21.99~~

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Size: 16x25x1

Price checked Oct 19, 2026, 2:46 PM PDT

23% off

Filtrete

Filtrete 20x20x1 Air Filter, MERV 11, MPR 1000, 2 HVAC Filters | Allergens & Pet Dander, 3-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 19.68x19.68x0.81 in)

$22.76~~$29.62~~

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Size: 20x20x1

Price checked Oct 19, 2026, 12:19 PM PDT

14% off

Filtrete

Filtrete 20x25x1 Air Filter, MERV 13, MPR 1900, 2 HVAC Filters | Allergens, Bacteria, Viruses & Air Pollutants, 3-Month AC/Furnace Filters, (Act. Size 19.62x24.62x0.78 in)

$31.49~~$36.99~~

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Size: 20x25x1

Price checked Oct 19, 2026, 11:40 AM PDT

25% off

Filtrete

Filtrete 16x25x1 Air Filter, MERV 5, MPR 300, 6 HVAC Filters | Basic Dust & Lint, 3-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow (Act. Size 15.69x24.69x0.81 in)

$29.97~~$39.99~~

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Size: 16x25x1

Price checked Oct 19, 2026, 11:30 AM PDT

31% off

Filtrete

Filtrete 20x30x1 Air Filter, MERV 11, MPR 1000, 2 HVAC Filters | Allergens & Pet Dander, 3-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 19.68x29.68x0.81 in)

$22.72~~$33.35~~

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Size: 20x30x1

Price checked Oct 19, 2026, 1:04 PM PDT

31% off

Filtrete

Filtrete 20x25x1 Air Filter, MERV 11, MPR 1000, 2 HVAC Filters | Allergens & Pet Dander, 3-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 19.68x24.68x0.81 in)

$22.99~~$33.35~~

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Size: 20x25x1

Price checked Oct 19, 2026, 11:30 AM PDT

13% off

Filtrete

Filtrete 16x25x1 Air Filter, MERV 8, MPR 700, 4 HVAC Filters | Dust, Pollen, & Pet Dander, 3-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 15.69x24.69x1.56 in)

$39.96~~$45.99~~

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Size: 16x25x1

Price checked Oct 19, 2026, 12:22 PM PDT

Below: not currently discounted — showing everything we track

These sit at or above their own normal price. We keep them here so you can see the current price and decide whether to wait.

Filtrete

Filtrete 16x25x1 Air Filter, MERV 11, MPR 1000, 4 HVAC Filters | Allergens & Pet Dander, 3-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 15.68x24.68x0.81 in)

$43.98

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Size: 16x25x1

Price checked Oct 19, 2026, 11:30 AM PDT

Filtrete

Filtrete 20x25x4 Air Filter MERV 11, MPR 1000 Micro Allergen Defense 2-Pack, Fits Honeywell & AprilAire, AC Furnace HVAC Filters for Home, Pleated Electrostatic (Actual Size 19.88 x 24.63 x 4.31 in)

$53.99

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Unavailable at last check

Size: 20x25x4 inches

Price checked Oct 19, 2026, 9:26 AM PDT

Filtrete

Filtrete 16x25x4 Air Filter, MERV 12, MPR 1550, 2 HVAC Filters | Allergen, Bacteria & Virus, 12-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 15.88x24.56x4.31 in)

$33.99

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Unavailable at last check

Size: 16" x 25" x 25.7"

Price checked Oct 19, 2026, 9:07 AM PDT

Filtrete

Filtrete 20x30x1 Air Filter, MERV 12, MPR 1500, 2 HVAC Filters | Allergens, Bacteria & Viruses, 3-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 19.62x29.62x0.78 in)

$29.62

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Size: 20x30x1

Price checked Oct 19, 2026, 9:26 AM PDT

Filtrete

Filtrete 16x25x1 in. Air Filter, MERV 13, MPR 1900, 2 HVAC Filters | Allergens, Bacteria, Viruses & Air Pollutants, 3-Month AC/Furnace Filters, (Act. Size 15.62x24.62x0.78 in)

$29.99

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Size: 16x25x1

Price checked Oct 19, 2026, 9:26 AM PDT

Filtrete

Filtrete 16x25x5 Air Filter, Fits Lennox, MERV 11, MPR 1000, 2 HVAC Filters | Allergen Defense, 12-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 15.63x24.75x4.31 in)

$49.99

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Size: 16x25x5

Price checked Oct 19, 2026, 9:26 AM PDT

Filtrete

Filtrete 20x20x1 Air Filter, MERV 5, MPR 300, 6 HVAC Filters | Basic Dust & Lint, 3-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 19.69x19.69x0.81 in)

$39.99

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Size: 20x20x1

Price checked Oct 19, 2026, 5:23 AM PDT

Filtrete

Filtrete 16x25x4 Air Filter, MERV 11, MPR 1000, 2 HVAC Filters | Allergen Defense, 12-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 15.88x24.56x4.31 in)

$46.79

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Size: 16" x 25" x 25.7"

Price checked Oct 19, 2026, 4:11 PM PDT

Filtrete

Filtrete 16x20x1 Air Filter, MERV 5, MPR 300, 6 HVAC Filters | Basic Dust & Lint, 3-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 15.69x19.69x0.81 in)

$33.84

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Size: 16x20x1

Price checked Oct 19, 2026, 6:02 AM PDT

Filtrete

Filtrete 20x25x5 Air Filter, Fits Lennox, MERV 11, MPR 1000, 2 HVAC Filters | Allergen Defense, 12-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 19.63x24.75x4.31 in)

$49.99

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Size: 20x25x5

Price checked Oct 19, 2026, 12:10 PM PDT

Filtrete

Filtrete 20x25x1 Air Filter, MERV 5, MPR 300, 6 HVAC Filters | Basic Dust & Lint, 3-Month AC/Furnace Filters, Cleaner Air, Reliable Airflow, (Act. Size 19.69x24.69x0.81 in)

$29.97

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Size: 20x25x1

Price checked Oct 19, 2026, 11:30 AM PDT