ITEM NAME:Plastic Boat Hose Intake Vent Louvered Vents 3 inch Ventilation Cover for Marine Description: Type: Vents Easy to install. Made with high quality plastic, weather resistance. Durable and designed for straight-through air flow for venting hoses. The vent design keeps unwanted elements out while allowing air to pass through. Specification: 3" Hose Material: Plastic Size: 8.5cm * 8.5cm * 2.5cm (L*W*H) Package Includes: 1 Piece Boat Air Vent Note: 1. Please check as much as possible to make sure the item is the one that you need. 2. Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) SKU: DMO0000365567002439.Type: Vents. 1 Piece Boat Air Vent. Made with high quality plastic, weather resistance. Material: Plastic. Durable and designed for straight-through air flow for venting hoses. Easy to install.