Thru Hull Scupper Plastic 1 1/2"

Function and technical context

The thru-hull is the structural element that passes through the hull of the boat to allow the passage of cooling water, drainage or exhaust systems, sealing the union between the interior and exterior of the hull. Made of fiberglass reinforced plastic (66-30%), this 1 1/2" thru-hull offers superior mechanical and chemical resistance to conventional plastic models, guaranteeing tightness against hydrostatic pressure and continuous work cycles in salt or fresh water. The external trim stamped in AISI 316 stainless steel provides additional protection against marine corrosion and ensures a robust finish in the contact area with the hull. A thru-hull in poor condition can compromise the watertightness of the hull, with the risk of uncontrolled water entering on board, so its integrity is a critical factor in nautical safety.

When to replace this part?

Common symptoms of deterioration in a thru-hull include visible leakage around the body or thread, warping or cracking of the plastic due to impact or aging, and corrosion of the outer trim that compromises tightening and sealing. It is recommended to visually inspect each thru-hull when disembarking the boat at the end of the season and at each beaching, checking that there are no cracks, looseness or deposits that indicate loss of sealing. Replacing a thru-hull preventively at the slightest sign of deterioration prevents serious breakdowns at sea and guarantees the structural safety of the boat.

Compatibility table