18 x 12 Merv 2 HVAC Pleated Filter, 12-Pack Compatible with Duct 10" actual front end outer dimensions

actual front end outer dimensions are approximately 26 5/8" width X 20 5/8" height

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

Plain Ends – Gives you the freedom to cut and flare at your own project needs

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

Actual Filter Size – 24 3/4"w x 17 3/4" x 1"

18 x 12 Merv 2 HVAC Pleated Filter, 12-Pack Compatible with Duct 10" actual front end outer dimensions+ 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