Check the listing for details. Ventline BVD0449-A01 Replacement Roof Vent Cover for 14" x 14" Ventadome Vents. Condition: New. Listed at 34.99 USD. The Ventline BVD0449-A01 is the replacement vent lid for standard RV roof ventadomes from 2008 to present. These wedge shaped RV vent covers are designed to fit 14" x 14" Ventline Ventadome RV roof vents. Replacement Instructions: 1. Remove garnish trim, operator handle and screen frame to expose operator mounting screws. 2. Remove and save the two screws holding operator to the center bar. Remove operator from center bar and dome. 3. Remove dome retainer clip from the hinge by prying off with a small flat blade screwdriver or pliers. 4. Remove old dome and install new dome onto hinge. 5. Slide operator into slot in center bar and slide plastic slider clip onto dome slide bar. Install retainer clip onto hinge. 6. Replace the two screws through the operator assembly and into the center bar. Replace screen and operator handle. Check operation.