12x18x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 11.75 x 17.75) - 3 Pack w8h8 rectangular shape

rectangular shape

It is compatible with 8" duct

5" height x 11

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+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 26" OR 26" x 18" duct opening (measured at the opening)

12x18x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 11.75 x 17.75) - 3 Pack w8h8 rectangular shape+ Product Details 12" x 18" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 11. 75" x 17. 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