Mushroom Screened Thru-hull Valves

Mushroom Screened Thru-hull Seacocks made of Marelon in the Forespar Marine 93 Series.

MARELON is an extremely strong, marine-grade, polymer composite for long-term use in all applications.

Create Customised Valves Manufactured To Fit Your Exact OEM Specs

• For Use Above or Below Waterline
• Exclusive Polymer Formulation That Will Never Corrode
• Can be Used with Any Hull Material
• Requires No Bonding Wires
• Immune to Lightning Strike Damage
• Saves Weight for Better Speed & Efficiency

MARELON products are ABYC compliant and can be used above and below the waterline.

Arrows on Marelon Integrated Plumbing images indicate water flow direction. Please be aware that sometimes image shows other variations of thru-hull.

We have some great blog posts on the Forespar Marelon Plumbing as well as number of Catalogues and Tech Sheets on Marine Plumbing.