Features： 1、High Strength Material: Boats airflow vent grill is made from stainless steel material, which is safe, sturdy, and rustproof, with long lasting reliability and fine craftsmanship. 2、Easy to Maintain: With its stainless steel material, this vent cover is not only rugged but also very easy to clean, ensuring a long lasting, rustproof functionality. Maintain the vent's optimal performance. 3、Excellent Decoration: With a fine workmanship, the vent cover not only enhances the beauty of your vehicle but also ensures long term usage, adding a touch of elegance wherever it is installed. 4、Broad Application: Boats airflow vent cover is suitable for a wide range of applications including RVs, boats, yachts, sailboats, and ships. It's a convenient accessory needed in a variety of circumstances. 5、Installation Location: The yacht airflow vent grill can be perfectly installed on the ceiling or wall. Its design also makes it extremely easy to dismantle and clean. Specification： Item Type:?Boats?Airflow?Vent?Cover Material: 316 stainless steel+ABS Quantity: 4 Suitable Pipe Size: 4in to 4.2in Surface Color: High polished 316 stainless steel Installation Method: Embedded installation Scope of Application: Yacht, RV, bus entrance, stairs, warehouse roof Package List： 4 x Airflow Vent Cover