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Solid Hinged Duct, Polyvinyl Chloride, 4 x 4 x 6 Feet, Light Gray, No Mounting Hole, Integrated hinged cover design allows easy access to wiring without hassle of removing and reinstalling cover. Dual-sided hinge can open up to 1 degrees from either sidewall of duct base for easy access to channel. Cover retention flanges allows the cover to open and close easily. Base scoreline allows sidewall sections to be more easily removed. Cover removal rib makes cover easy to open from either side.