18" x 22" Pleated MERV 8 Filter for HVAC Return Filter Grille Brown 75" width X 33

75" width X 33

+ Product Details Size – 8" x 30" or 30" x 8" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 27 5/8" width X 28 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 12" OR 12" x 30" duct opening (measured at the opening)

Actual Filter Size – 21 3/4"w x 5 3/4" x 1"

18" x 22" Pleated MERV 8 Filter for HVAC Return Filter Grille Brown 75" width X 3318" x 22" Pleated MERV 8 Filter for HVAC Return Filter Grille Actual Dimensions: 17. 75" X 21. 75" 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 The "W" Shaped Pleats Give You More Filter Surface Thereby Capturing More Dust All Our Filter Are Tested Per ASHRAE 52. 2 Standards MERV 8 And An Average Arrestance Of 90 94% Extra Strong Frame Our