4" X 25' - Round Duct Sheet Metal Pipe [5pcs 5'] w14h14 Universal Fit – Dimensions of

Universal Fit – Dimensions of 6-3/8" wide x 3-1/2" high x 3" deep make it compatible with most standard thermostat models

+ Product Details Size – 40"w X 20"h is the size for the duct opening measurement only

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Plumbing Connections: Connect the inlet and outlet pipes securely

actual front end outer dimensions are approximately 28 5/8" width X 8 5/8" height

4" X 25' - Round Duct Sheet Metal Pipe [5pcs 5'] w14h14 Universal Fit – Dimensions of4" X 25' Round Duct Sheet Metal Pipe 5 PACK of 5' pipes 30 Gauge Galvanized Crimped End Connection 5 IN A PACK 4 Inch Diameter Pipe 25 Foot Length When Connected 30 Gauge Thick & Made of Thick & Durable Galvanized Sheet Metal Used For HVAC System Duct Work In Any Building or Home HIGH QUALITY High Quality Galvanized Sheet Metal with Crimped Ends (Snap Lock Design) For Easy Fitting and Secure Connection To Consecutive Duct Joints Made of Galvanized