Builder's Best 012634 Black Metal Roof Vent Cap (6"-8" (3 1/4" x 10") Universal Flush)
• 26-gauge steel;• Black, electrically bonded epoxy finish ;• Removable 1/4" x 1/4" screen ;• Back-draft flapper ;• Bulk box ;• 6"-8" (3 1/4" x 10") universal flush;