- Is this filter worth $49.99?
- Only if you would otherwise buy several disposable filters a year. At $49.99 at Lowe's as of November 7, 2026, it needs to replace roughly a year or more of disposables to break even.
- How often should I wash it?
- K&N generally suggests rinsing every one to three months depending on dust and pets. Let it dry completely before putting it back.
- Is MERV 8 enough for allergies?
- MERV 8 catches dust, pollen and lint but not fine smoke or most bacteria. Households with allergy sufferers often want MERV 11 or higher.
- Will it fit my 24x24x1 slot?
- Yes, it is built to the nominal 24 x 24 x 1 size. Measure your slot first, since actual filter dimensions can run slightly under nominal.
- Does a washable filter restrict airflow more?
- A clean MERV 8 pleated filter is comparable to a disposable of the same rating. A dirty or damp one will restrict airflow, so keep it clean and dry.
- When is it cheapest?
- Only Lowe's listed a new price, $49.99, as of November 7, 2026. Watch for seasonal HVAC sales and multi-packs, which lower the per-filter cost.
- Where is the K&N 24-in W x 24-in L x 1-in Washable MERV 8 Pleated Air Filter HVC-8-12424 cheapest?
- At Lowe's, for $49.99, as of our latest check.