12" x 24" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 11.75 X 23.75] 3-Pack 18" Round Duct Pipe meaning your HVAC lines will

meaning your HVAC lines will receive an unprecedented level of protection

NC (Normally Closed): Black

actual front end outer dimensions are 17

and rust caused by water and moisture

+ Product Details Size – 20" x 22" or 22" x 20" is the size for the duct opening measurement only

12" x 24" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 11.75 X 23.75] 3-Pack 18" Round Duct Pipe meaning your HVAC lines will+ Product Details Size 12"w X 24"h pleated MERV 8 filter for HVAC return filter grille 3 Pack. Actual dimensions: 11. 75" X 23. 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 give you more filter surface thereby capturing more dust. Our metal and paper diagonal support bars ensure the filter can