18x12x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 17.75 x 11.75) - 3 Pack Straight Register Boot Say goodbye to vibrating louvers

Say goodbye to vibrating louvers - this grille ensures a quiet

or other utility areas

Actual Filter Size – 25 3/4"w x 35 3/4" x 1"

anti-corrosion

+ Product Details Size – 4" X 10" is the opening (vent hole) dimension - actual size is approx

18x12x1 MERV 2 Non Pleated Air Filter Replacement Filters (Actual Size 17.75 x 11.75) - 3 Pack Straight Register Boot Say goodbye to vibrating louvers+ Product Details 18" x 12" x 1" replacement air filters for your furnace, air conditioner, heat pump, or HVAC system (actual size: 17. 75" x 11. 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