Whitecap Clam Shell Midget Vent 1-1/2" x 1-3/4" - S-1388C. Durable Stainless Steel Vent for Marine and Outdoor Applications. The Whitecap Clam Shell Midget Vent 1-1/2" x 1-3/4" - S-1388C is a compact, corrosion-resistant vent designed for reliable airflow in boats, yachts, and outdoor structures. Constructed from marine-grade 304 stainless steel, this vent provides superior protection against rust, moisture, and debris, ensuring long-lasting performance even in harsh marine conditions.. Key Features. Material: 304 marine-grade stainless steel for excellent corrosion resistance and durability.. Size: Compact 1-1/2" x 1-3/4" dimensions, ideal for small venting needs.. Fastener: Uses three #6 screws for secure installation.. Clam Shell Design: Promotes airflow while keeping out water and debris.. Easy Installation: Simple mounting process with basic tools.. Compatibility. Marine Applications: Perfect for boats, yachts, and engine compartments.. Outdoor Use: Suitable for sheds, cabins, or