18 x 12 Merv 2 HVAC Pleated Filter, 12-Pack Blade providing a clean

providing a clean

this thermostat guard is an ideal solution for residential

+ Product Details Size – 24"w X 20"h is the size for the duct opening measurement only

+ Product Details Size – 14" x 18" or 18" x 14" is the size for the duct opening measurement only

18 x 12 Merv 2 HVAC Pleated Filter, 12-Pack Blade providing a clean+ Product Details Size 18"w X 12"h pleated MERV 2 filter for HVAC return filter grille 12 Pack. Actual dimensions: 17. 75" X 11. 75" High Quality A uniquie combination of cotton & synthetic fibers gives you the most filtration and the least air resistance equals great air & easy airflow for your system Design The W shaped pleats increase the surface area, effectively capturing dirt and particles such as pollen, dust mites, standing dust, spray paint