12 x 20 Merv 2 HVAC Pleated Filter, 12-Pack 3-Pack Achieve superior control over your

Achieve superior control over your indoor airflow for a more comfortable space

actual front end outer dimensions are approximately 38 5/8" width X 16 5/8" height -

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 24" duct opening (measured at the opening)

Measure the size of the air duct/drywall opening

12 x 20 Merv 2 HVAC Pleated Filter, 12-Pack 3-Pack Achieve superior control over yourThe W shaped pleats enlarge the surface area for capturing dirt and particles for cleaner air Get 3 MERV 2 AC filters per pack while only paying for 2 Dimensions are interchangeable for rectangular filters, but not square ones Let air circulate and cycle through your HVAC without obstructions