18 x 12 Merv 2 HVAC Pleated Filter, 12-Pack Compatible with Duct 10" + Product Details Size –

+ Product Details Size – 25"w X 30"h is the size for the duct opening measurement only

+ Product Details Size – 36"w X 14"h is the size for the duct opening measurement only

Our Metal And Paper Diagonal Support Bars Ensure The Filter Can Hold AN extra Heavy Load Of Dirt

+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 26" OR 26" x 28" duct opening (measured at the opening)

Suitable for all AC applications

18 x 12 Merv 2 HVAC Pleated Filter, 12-Pack Compatible with Duct 10" + Product Details Size –+ 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