20" x 36" or 36" x 20" Cube Core Eggcrate Return Air Grille 3-Way or 4-Way and slashes energy costs 4" Round Duct Pipe Product Details Size The SHEASC10W1-HP

and slashes energy costs

This versatile guard features air circulating ports on all four sides to allow proper airflow

+ Product Details Size – 10"w X 36"h is the size for the duct opening measurement only

Actual Front End Outer Dimensions Are 34" Width X 10" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

actual front end outer dimensions are approximately 10 5/8" width X 34 5/8" height

20" x 36" or 36" x 20" Cube Core Eggcrate Return Air Grille 3 Way or 4 Way and slashes energy costs 4" Round Duct Pipe Product Details Size The SHEASC10W1 HP and slashes energy costs This versatile guard features air circulating ports on all four sides to allow proper airflow