Up for sale is a pair of cream / almond colored 6 louver boat bilge vents. These units measure 18” by 3 ½” at the greatest outside dimensions. The rough opening cut out for these vents to set in are 2 3/8” wide by 16 ¼” long. They mount with 6 screw holes. The overall height of these vents is 1 7/8” with 1” protruding into the rough opening and 7/8” protruding outside the hull. I have these units listed used, but I purchased them brand new and then never installed them, and they were placed in storage and just received a cleaning before this listing. They are in very good condition. Thanks for looking and God bless!