12x30x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 11.75 x 29.75) - 3 Pack Height_18in + Product Details Size –

+ Product Details Size – 26" x 36" or 36" x 26" is the size for the duct opening measurement only

+ Product Details Size – 12"w X 30"h or 30" x 12" is the size for the duct opening measurement only

+ Product Details Size - 4"w X 32"h is the size for the duct opening measurement only

Quality Packaging – carefully packaged to prevent damage in shipment

+ Product Details Size – 20"w X 16"h is the size for the duct opening measurement only

12x30x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 11.75 x 29.75) - 3 Pack Height_18in + Product Details Size –+ Product Details 12" x 30" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 11. 75" x 29. 75") A unique combination of cotton & synthetic fibers gives you the most filtration and the least air resistance equals great air & easy airflow for your system. The non pleated design provides low airflow resistance while still effectively capturing dirt and particles such as standing dust, spray paint