10 x 10 Merv 2 HVAC Pleated Filter, 12-Pack Stick on Side Take Off 12"w X 3"h Is The

12"w X 3"h Is The Size For The Duct Opening Measurement Only

+ Product Details Size - 28"w X 20"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 34" x 24" Or 24" x 34" duct opening (measured at the opening)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 6" or 6" x 14" duct opening (measured at the opening)

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10 x 10 Merv 2 HVAC Pleated Filter, 12-Pack Stick on Side Take Off 12"w X 3"h Is TheThe 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