Marine City 4” Stainless Steel Round Louver Vent Cover with Side Knob

The Marine City 4 Inch Round Louver Vent Cover with Side Knob is precision-crafted from marine-grade 304 polished stainless steel , offering excellent resistance to corrosion, rust, and harsh marine conditions. Its butterfly-style louver design allows smooth and precise airflow control through a convenient side knob mechanism.

This stainless steel ventilation plate is commonly used for marine companionway doors, cabins, and cockpits , while also being suitable for household sheds and utility areas. The polished finish adds a clean, professional appearance to any marine installation.

Designed for durability and ease of use, the vent is simple to install and maintain, requiring no special tools or mechanical expertise. With a 4-inch diameter and 1 mm thickness , it provides reliable ventilation performance in both marine and outdoor environments.

Key Features 

• Marine-Grade 304 Stainless Steel: Polished finish ensures superior corrosion resistance and long-lasting durability

• Side Knob Butterfly Design: Easily control airflow by rotating the side knob to open or close the ventilation flap

• Versatile Marine Use: Ideal for cabin ventilation, companionway doors, cockpits, yachts, boats, and household sheds

• Easy Installation: Simple to mount with no modification required; secure and stable fit

• Strong & Reliable: Designed to stay firmly in place in marine and outdoor environments

• Package Includes: Marine City 4” Stainless Steel Round Louver Vent Cover