23.5×23.5×1Air Filter

Actual size: 23.5″ × 23.5″ × 0.75″
Exact-cut OEM size, the printed size is the true size.

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Fit guarantee
Picked by HVAC techs

Choose your protection level

Pack size (bigger packs save more)

23.5x23.5x1 · MERV 11 · 3-Pack$59.97$38.49

Or subscribe: $9.49/filter delivered, never think about it again

MERV 11 · 3-Pack

$38.49

Common questions about 23.5x23.5x1

What is the actual size of a 23.5x23.5x1 filter?+

23.5x23.5x1 is an exact-cut size: it measures a true 23.5" × 23.5" × 0.75". It's made for specific OEM return grilles.

Which MERV rating should I pick for a 23.5x23.5x1?+

MERV 8 handles everyday dust. MERV 11 is our most popular, it captures pet dander and pollen. MERV 13 adds smoke, bacteria, and virus-carrier capture, and it's fine in modern systems (post-1995 blowers). When in doubt, call us, a real HVAC tech answers.

How often should I change a 23.5x23.5x1 filter?+

Every 30-90 days. Monthly if you have pets or allergies; every 2-3 months otherwise. Our subscription handles the schedule for you.