Seacocks & Thru-Hulls for Open Boats

Compact and corrosion-resistant hull fittings for sloops and tenders

Reliable thru-hulls and seacocks are essential on open boats, sloops, and tenders for draining rain and cockpit spray safely. Within our Seacocks & Thru-Hulls subcategory under Open boat accessories, you will find a targeted selection of compact ball valves, composite and stainless steel skin fittings, drain plugs, and scupper valves. These components are specifically engineered for lighter hull structures and tight installation spaces inside small bilges or lockers.

Specialized fittings and drainage gear

Our inventory in this subcategory includes key components for keeping cockpits dry:

• Thru-hulls with scupper valves: Designed for self-bailing cockpits, featuring check valves or rubber bungs to block incoming water.

• Composite & Stainless Steel Thru-Hulls: Lightweight and corrosion-resistant fittings from brands like Nuova Rade and Lalizas for bilge and deck drainage.

• Compact Seacocks & Ball Valves: Space-saving valves ideal for mounting in narrow spaces where clearance is limited.

• Transom Drain Plugs: Easy-to-use drain plugs for quickly releasing collected water when the boat is trailered or stored out of the water.

Reliable and watertight drainage

Properly sealed fittings prevent water from backing up into the boat while underway or at anchor. Opt for UV-stabilized composite or marine-grade stainless steel (AISI 316) and apply suitable marine sealants during installation to guarantee a watertight bond with the hull.

Explore our selection of seacocks and thru-hulls for open boats online at Marine-Outlet.