All 20 listings, cheapest per filter first
| Item | Size | Price | Per filter | |
|---|---|---|---|---|
| 20x25x1 Fiberglass Air Filters, 12-Pack, AC & Furnace, Glasfloss | 12 filter | $52.97 | $4.41 | Amazon → |
| Filtrete 20x25x1 Air Filter, MERV 5, MPR 300, 6 HVAC Filters | 6 filter | $29.97 | $5.00 | Amazon → |
| Amazon Basics MERV 5 AC Furnace Air Filter, 20x25x1 inches, 6-Pack (Actual size: 19.75" x 24.75" x 0 | 6 filter | $29.97 | $5.00 | Amazon → |
| Filtrete 20x25x1 Air Filter, 3M MERV 1 HVAC AC Furnace Filter Replacement, 6-Pack (Actual Size 19.69 | 6 filter | $29.99 | $5.00 | Amazon → |
| Amazon Basics 20x25x1 Air Filter 6-Pack, MERV 11 AC Furnace Filters, Dust, Pet, Allergen Control , E | 6 filter | $37.26 | $6.21 | Amazon → |
| Amazon Basics 20x25x1 Air Filter 6-Pack, MERV 8 AC Furnace Filters, Removes Dust, Electrostatic, All | 6 filter | $38.85 | $6.48 | Amazon → |
| Simply 20x25x1 Air Filter, Merv 8, 6 Pack, For Home AC Furnace & HVAC (Actual Size: 19.75"x24.75"x0. | 6 filter | $43.17 | $7.20 | Amazon → |
| Filter King 20x25x1 Air Filter MERV 8, AC Furnace Filters (6-Pack) | 6 filter | $44.94 | $7.49 | Amazon → |
| BNX TruFilter 20x25x1 Air Filter MERV 8 Dust, Pet & Allergy Defense 6-Pack | 6 filter | $44.96 | $7.49 | Amazon → |
| Filterbuy 20x25x1 Air Filter MERV 8 Dust & Allergy Defense (6-Pack) | 6 filter | $47.94 | $7.99 | Amazon → |
| BNX TruFilter 20x25x1 Air Filter MERV 11 Allergy, Dust & Pet Defense 6-Pack | 6 filter | $49.48 | $8.25 | Amazon → |
| Filterbuy 20x25x1 Air Filter MERV 8 Dust & Allergy Defense (4-Pack) | 4 filter | $34.16 | $8.54 | Amazon → |
| Aerostar Air Filter 20x25x1 MERV 13 AC Filter, HVAC, Furnace Filter, 6 Pack | 6 filter | $51.99 | $8.67 | Amazon → |
| BNX TruFilter 20x25x1 Air Filter MERV 13 Smoke, Allergy, Pet Defense 6-Pack | 6 filter | $58.59 | $9.77 | Amazon → |
| Aerostar Air Filter 20x25x1 MERV 13 AC Filter, HVAC, Furnace Filter, 4 Pack | 4 filter | $39.68 | $9.92 | Amazon → |
| Filtrete 20x25x1 Air Filter, MERV 11, MPR 1000, 2 HVAC Filters | 2 filter | $22.99 | $11.49 | Amazon → |
| Filtrete 20x25x1 Air Filter, MERV 11, MPR 1000, 6 HVAC Filters | 6 filter | $69.99 | $11.66 | Amazon → |
| Filtrete 20x25x1 Air Filter, MERV 11, MPR 1000, 4 HVAC Filters | 4 filter | $49.99 | $12.50 | Amazon → |
| Filtrete 20x25x1 Air Filter, MERV 12, MPR 1500, 2 HVAC Filters | 2 filter | $29.99 | $14.99 | Amazon → |
| Filtrete 20x25x1 Air Filter, MERV 13, MPR 1900, 2 HVAC Filters | 2 filter | $41.99 | $21.00 | Amazon → |
Prices as of 2026-10-24 19:12:16 UTC: Amazon item price (Amazon's own, else its lowest new offer) before shipping and tax, via Keepa. Size comes from Amazon's unit count or the listing title; check the listing before buying. Product prices and availability are accurate as of the date/time indicated and are subject to change. As an Amazon Associate, Sharpest earns from qualifying purchases.
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