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

+ Product Details Size - 10"w X 18"h X 2"d (for duct opening measurement only)

+ Product Details Size & Compatibility – The size of the wall angle register boot is 10" X 6" X 6 and it is compatible with duct 6"

+ Product Details Size - 16"w X 26"h X 2"d (for duct opening measurement only)

2" X 12" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

Design – Cubic core eggcrate design Offers highest airflow efficiency at almost 95%

30" x 8" Pleated MERV 8 Filter for HVAC Return Filter Grille [Actual Dimensions: 29.75 X 7.75] 3-Pack Floor Grille Toe Space + Product Details Size -30" x 8" Pleated MERV 8 Filter for HVAC Return Filter Grille 3 Pack Actual Dimensions: 29. 75" X 7. 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