18 x 12 Merv 2 HVAC Pleated Filter, 12-Pack Blade actual front end outer dimensions

actual front end outer dimensions are approximately 13

it effectively prevents unauthorized access

compatible with duct 6" | 10 PACK of 2' pipe - 20-foot length when connected– 30 gauge thick & made of thick & durable galvanized sheet metal

actual front end outer dimensions are approximately 35

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