The Ventline Exterior Wall Vent is designed for your RV stove hood. The weatherproof, canopy-like design protects your stove exhaust outlet from rainwater.• Built-in damper is perfect for stove hoods without an internal damper• Damper may be locked closed when necessary• Screws into your outer wall where stove exhaust ducts are located (screws not included)• Made of durable, injection-molded polystyrene plastic• Overall Dimensions: 11-5/8"W x 5-5/16"H• Cutout Dimensions: 10-1/2"W x 3-3/4"H• Collar measures 1-3/4" deep Built-in damper may be locked closed when necessary Made of injection-molded polystyrene plastic | Camping World Ventline Exterior Vent for RV Stove Hood, Black