12" x 32" or 32" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 3-Way or 4-Way angle them down for effective 4" Round Duct Pipe Product Details Size The SHEASC10W1-HP

angle them down for effective warmth distribution

+ Product Details Size – 26"w X 10"h is the size for the duct opening measurement only

8-1/8"H x 4-5/8" W x 3-5/8"D

+ Product Details Size - 30"w X 4"h is the size for the duct opening measurement only

+ Product Details Size – 28"w X 6"h is the size for the duct opening measurement only

12" x 32" or 32" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter 3 Way or 4 Way angle them down for effective 4" Round Duct Pipe Product Details Size The SHEASC10W1 HP angle them down for effective warmth distribution + Product Details Size – 26"w X 10"h is the size for the duct opening measurement only