The Seachoice White Cable Thru-Hull Fitting (Part #17921) provides a clean, professional, and watertight solution for routing electrical wiring through your vessel's bulkhead, deck, or superstructure. Specially designed to clean up messy wire pass-through holes, it safely isolates cables from sharp edges while blocking out moisture and spray.

Key Performance & Technical Specs

This low-profile fitting easily manages cables for marine antennas, radar arrays, or fishfinder transducers without cluttering your workspace.

• Cable Capacity: Accommodates a single cable up to 0.7 cm (1/4") in diameter or a double cable configuration up to 0.6 cm in diameter each.

• Dimensions & Sizing: Requires a 3/4" mounting hole for installation.Features a 1/4" wire slot and a 1-1/4" flange to completely hide raw cutout edges.

• Hull Compatibility: Built to accommodate a maximum transom or hull thickness of 2" (5.1 cm).

• No Mounting Hardware Required: Features a self-attaching design that tightens firmly in place without the need for external screws, rivets, or fasteners.

• Material: Molded from durable, UV-stabilized white plastic to resist yellowing, cracking, and degradation under harsh marine environments.

Application & Safety Notes

⚠️ Important Placement Rule: This plastic fitting is strictly engineered for above the waterline use only. Do not install this component on any section of the hull that remains continuously submerged.

• Watertight Installation: While the fitting is self-attaching, applying a small bead of marine sealant around the flange edge is recommended to guarantee a completely watertight seal against heavy washdowns or driving rain.

• Clean Retrofits: Ideal for upgrade projects where new electronics are being added. It completely covers raw fiberglass or plastic hole edges, eliminating cable chafing and providing a factory-finished look.