Review on 🌀 Fiberglass Furnace Air Filter - Flanders Precisionaire 12X20X1 by Will Powers

These are basic filters that should work great with your air conditioner. Mine arrived quickly and in good condition and fits perfectly. They offer great airflow, but you can expect to replace them more often than pleated ones. But even if you replace them three times as often, you're still $$ ahead because they're economical. They don't filter out all microparticles like MERV 8 or higher, but they also don't add extra stress to your system by restricting airflow, and air conditioning is all about airflow.