18x30x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 17.75 x 29.75) - 3 Pack 12" Round Duct Pipe Actual Filter Size – 23

Actual Filter Size – 23 3/4"w x 47 3/4" x 1"

Actual Filter Size – 15 3/4"w x 17 3/4" x 1"

Comfort and Durability A strong

and ventilators

Ideal for both walls and ceilings

18x30x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 17.75 x 29.75) - 3 Pack 12" Round Duct Pipe Actual Filter Size – 23+ Product Details 18" x 30" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 17. 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