Features: enhances your or boat's air quality with this high quality 3 inch cowl vent, designed to effectively expel odors and moisture while ensuring best airflows. Crafted from plated with a black plastic base, this vent features a design and easy installation without the need for hose clamps. Suitable for owners, yacht enthusiasts, and sailors seeking improved indoor air circulation and ventilation. Perfect for use in kitchens, bathrooms, and bedrooms of RVs, yachts, and sailboats, providing a freshes and comfortable indoor environment. This Multifunction vent is essential accessory for maintaining a clean and breathable atmosphere on your recreational vehicles and marine vessels. Specifications: Material: ABS Size: about 3inch Note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x3 Inch Duct Vent