Attwood Stainless Steel Scupper Valve Barbed - 1-1/2" Hose Size

Upgrade your vessel with our Premium Stainless Steel Scupper Valve, designed for optimal performance and durability on the water. Engineered to withstand the demanding marine environment, this scupper valve ensures a reliable and leak-free installation, enhancing both the functionality and appearance of your boat.

Unmatched Stainless Steel Quality

• Enhanced 316 Stainless Steel Alloy: Crafted from certified Enhanced 316 Stainless Steel, offering superior strength and exceptional corrosion resistance for long-lasting performance.
• Mirror-Finished Exterior: All exterior surfaces are meticulously polished to a reflective mirror finish and undergo passivation, providing enhanced protection against harsh marine elements.
• Robust Construction: Thick steel sidewalls are engineered to withstand continuous stress and repeated hose flexing, ensuring the integrity of the valve over time.

Seamless and Efficient Installation

• Secure Watertight Seal: Each scupper valve includes a high-quality silicone gasket, guaranteeing a tight and leak-proof seal during installation.
• Integrated Sealant Channel: The flange features an integrated channel to retain sealant, simplifying the application process and ensuring a flawless installation.
• Installer-Friendly Design: Equipped with wrench flats or an end notch, allowing a single installer to easily tighten all connections from inside the hull.
• Stable Hose Attachment: Barbed ends provide ample space for multiple clamps, ensuring a secure and leak-free connection for your hoses.

Advanced Features for Enhanced Performance

• Precision-Molded Scupper Flap: Constructed from durable neoprene rubber with a V-shaped design that fits seamlessly into the grooved body, effectively minimizing backwash and maintaining optimal water flow.
• Hidden, Corrosion-Proof Fasteners: All fasteners are concealed and made from corrosion-resistant materials, preserving both the functionality and sleek appearance of your scupper system.

Comprehensive Specifications

Feature	Specification
Hose Size	1-1/2" Inner Diameter
Thread Diameter	1-7/8"
Flange Outer Diameter	3"
Thread Length	3-1/2"
Barb Length	1-1/2"
Total Length	5-1/2"
Recommended Install Hole Saw Size	2"
Thread NPSM	1-1/2"
Maximum Hull Thickness	3"

*Please note: Stainless Steel Thru-Hull Connectors are intended for installation above the waterline only.

Additional Product Details

• Hose Size: 1-1/4"
• Material: Premium Stainless Steel
• Package Dimensions: 3" H x 3" W x 6" L
• Weight: 3 lbs
• UPC: 022697665539

Download the Quick Guide (PDF)

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.