20x20 Air Filter

20x20 Air Filter

Most common size for Corsi-Rosenthal boxes and fan attachments.

  • Perfect fan fit
  • Easy to find
  • Affordable pricing
  • Multiple MERV ratings
  • Quick replacement

Kom Igång

Bygg din egen högpresterande luftrenare med våra Energy Star 2025 certifierade DIY-kit. Spara 60-70% vs kommersiella enheter med beprövad Corsi-Rosenthal Box design.