Filtrete 4” MERV 12 Air Filter 2‑Pack – $10 Off at Costco

Filtrete's 4‑inch, MPR 1550, MERV 12 filter offers a high capture rate for particles as small as 0.3 microns, making it a practical choice for households seeking cleaner air without frequent replacements. The deep pleat construction maximizes surface area, extending the filter's lifespan and reducing overall cost per use.

At $33.99 for a 2‑pack and an additional $10 manufacturer’s savings, the unit delivers solid value for budget‑conscious shoppers. Its compatibility with a range of standard HVAC systems means you can improve indoor air quality without extra hardware or complicated installation.

We recommend this filter for anyone looking to balance effective allergen removal with long‑term durability, especially as indoor air standards continue to rise in 2026.