12 x 6 Merv 2 HVAC Pleated Filter, 12-Pack Wall Angle Floor Boot + Product Details Size -

+ Product Details Size - 12"w X 4"h Is The Size For The Duct Opening Measurement Only

+ How To Measure A Grille Measure the size of the vent opening

Install 2 Vents

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 24" or 24" x 10" duct opening (measured at the opening)

12 x 6 Merv 2 HVAC Pleated Filter, 12-Pack Wall Angle Floor Boot + Product Details Size -The 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