Barker Refrigerator Roof Vents Cap Only. Highest quality parts. Ruggedly built for maximum durability. Best performance. They make RV-ing easy Features of Barker 12604 Refrigerator Roof Vents Cap Only Quality plastic construction guards against oxidation The patented bird and rodent screen will not rust or come apart Provides durable long life Approved by the American Gas Association Package Contents: Barker 12604 Refrigerator Roof Vents Cap Only Barker 12604: Refrigerator Roof Vents Cap Only