12 x 6 Merv 2 HVAC Pleated Filter, 12-Pack return filter + Product Details Size –

+ Product Details Size – 12" X 24" is the size for the drywall opening measurement only

+ Product Details Size – The size 30-gauge stick-on collar is 5" and it is compatible with duct 5"

+ Product Details Size – 34" x 34" is the size for the duct opening measurement only

Design – Designed to withstand bends and sharp turns without kinking

12 x 6 Merv 2 HVAC Pleated Filter, 12-Pack return filter + 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