Five Oceans Round Adjustable Air Hose Thru Vent, 4 1/2" Material: Injection Molded Plastic Outside Diameter: 6 3/8" / Depth: 2" Inside Diameter: 3 3/4" Cutout: 4 1/2" Color: White Type: Adjustable Vent Material: Injection Molded Plastic Outside Diameter: 6 3/8&#034; / Depth: 2&#034; Inside Diameter: 3 3/4&#034; Cutout: 4 1/2&#034; Color: White