Forespar 904048ABYC Marelon 2" Full-Flow Seacock with Mushroom Through-Hull

The Forespar Marelon Full-Flow Seacock is an integrated 2-part marine plumbing system that combines a high-performance ball valve with a properly matched 2" mushroom head through-hull fitting. Engineered to eliminate the common installation problems associated with mismatched threading between separate components, this complete system features super-strong buttress-type threads that ensure proper fit and reliable sealing both above and below the waterline.

Constructed from Forespar's exclusive Marelon composite polymer, this seacock will never corrode, pit, or deteriorate from galvanic action, making it ideal for saltwater and freshwater applications. The full-flow design minimizes flow restriction, while the integrated hose connector simplifies installation and reduces potential leak points.

Key Features:

• Complete system includes full-flow seacock with integrated hose connector and mushroom through-hull fitting
• 2" size suitable for engine cooling, generator intake, and other high-volume applications
• Exceeds ABYC H-27 standards and UL approved for marine use
• Corrosion-proof Marelon polymer construction eliminates galvanic corrosion issues
• Buttress-type threading prevents cross-threading and ensures proper valve-to-hull alignment
• Approved for installation above or below the waterline
• Includes emergency handle cap that doubles as through-hull plug for emergency use
• Full-flow ball valve design minimizes flow restriction

This ABYC-compliant system provides boat owners and marine professionals with a reliable, long-lasting solution for raw water intake, discharge, and other marine plumbing applications where traditional bronze fittings are prone to corrosion failure.