5 pack 16" Round x 24" -Total 10 Feet of pipe - Round Duct Sheet Metal Pipe - 26 Gauge Galvanized - Crimped End Connection [5 pcs 2'] w22h22 + Product Details Size – AD-S-230-10x10 Actual Filter Size 25 Width_8in

+ Product Details Size – 10"w X 6"h is the size for the duct opening measurement only

+ Product Details Size - 20"w X 24"h X 2"d (for duct opening measurement only)

order a 20x14 grille

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Design – Unrestricted airflow for your HVAC system - adjustable one-way louver with full horizontal airflow directional control - single deflection supply grill with 96% airflow - noise free components - no vibrating louvers etc

5 pack 16" Round x 24" Total 10 Feet of pipe Round Duct Sheet Metal Pipe 26 Gauge Galvanized Crimped End Connection [5 pcs 2'] w22h22 + Product Details Size – AD S 230 10x10 Actual Filter Size 25 Width_8in + Product Details Size – 10"w X 6"h is the size for the duct opening measurement only + Product Details Size 20"w X 24"h X 2"d (for duct opening measurement only)