8" X 25' - Round Duct Sheet Metal Pipe [5 pcs 5'] Aluminum - Cube Core Unlike traditional doors that have

Unlike traditional doors that have visible frames and hinges

High Quality Copper Coil Meets/Beats ASTM B280 Standard for Air Conditioning and Refrigeration (Made From C12200 - 99

+ Product Details Size - 40"w X 16"h is the size for the duct opening measurement only

Design - special "V" shaped louvers ensure 100% view block while ensuring easy un-restricted air flow

8" X 25' - Round Duct Sheet Metal Pipe [5 pcs 5'] Aluminum - Cube Core Unlike traditional doors that have8" X 25' Round Duct Sheet Metal Pipe 5 PACK of 5' pipes 30 Gauge Galvanized Crimped End Connection 5 IN A PACK 8 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 In Any Building or HomeIn Any Building or HomeIn Any Building or HomeIn Any Building or Home HIGH QUALITY High Quality Galvanized Sheet Metal with Crimped Ends (Snap Lock