30" x 8" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 29.75 X 7.75] 3-Pack w28h28 + Product Details Size -

+ Product Details Size - 18"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 24" x 24" with 10" collar T-Bar drop ceiling perforated return grill - metal back casing

75" width X 37

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30" x 8" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 29.75 X 7.75] 3-Pack w28h28 + Product Details Size -+ Product Details Size 30"w X 8"h pleated MERV 8 filter for HVAC return filter grille 3 Pack. Actual dimensions: 29. 75" X 7. 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