TuoP Stainless Steel Wire Cable Hole Ventilator Cover Clam Shell Vent for Marine Boat, Small Size : 1-5/8" x 1-3/4", Large Size: 2-1/4" x 2-3/16" Optional Small 2 PCS
The U.S. Tried to Build a New Fleet of Ventilators. The Mission Failed. - The New York Times