18" x 22" Pleated MERV 8 Filter for HVAC Return Filter Grille Insulated Line + Product Description Upgrade your

+ Product Description Upgrade your HVAC system with our heavy-duty

Crafted from robust 20-gauge steel

Design – This airflow control component are made to connect to HVAC diffuser and restrict airflow

+ Product Details Size – 12"w X 36"h is the size for the duct opening measurement only

18" x 22" Pleated MERV 8 Filter for HVAC Return Filter Grille Insulated Line + Product Description Upgrade your18" 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