18x18x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 17.75 x 17.75) - 3 Pack white + Product Details Size -

+ Product Details Size - 20"w X 20"h Is The Size For The Duct Opening Only

actual front end outer dimensions are approximately 20 5/8" width X 14 5/8" height -

If for any reason you are not 100% satisfied with the filters-we will refund your money

Ideal for Walls & Ceilings: Designed for seamless installation in standard 8" X 8" duct openings

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