Perko 1-1/2" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN THE USA

The Perko 1-1/2" Thru-Hull Fitting with Pipe Thread Bronze (Model 0322DP8PLB) is a precision-cast bronze marine fitting engineered for reliable through-hull installation on vessels with demanding saltwater exposure. Built domestically in the USA, this thru-hull fitting delivers the corrosion resistance and structural integrity required for long-term seawater service. The flange is machined to fit the hull precisely and features grooves that retain bedding compound, preventing water intrusion and ensuring a watertight seal under extended use.

Key specifications reflect marine installation best practices. The 1-1/2 inch pipe size accommodates standard through-hull applications for seawater intake, drain, or ventilation systems. The threaded neck extends approximately 3/8 inch from the flange, providing adequate thread engagement for secure fastening. The 3-inch outside diameter flange spreads load evenly across the hull surface, while the 1-7/8 inch mounting hole diameter accepts standard fasteners. This fitting accommodates hulls up to 2-1/4 inches thick, making it suitable for single-layer and sandwich-core construction. Cast bronze material offers superior corrosion resistance compared to brass in aggressive saltwater environments and requires minimal maintenance over decades of service.

This thru-hull fitting serves fishing vessels, cruising sailboats, and commercial marine operators where reliable through-hull penetrations are non-negotiable. Weekend anglers upgrading seawater systems, as well as serious offshore fishermen managing multiple through-hull penetrations, rely on Perko's manufacturing precision to eliminate leaks and hull integrity failures. The bronze construction and domestic manufacturing ensure traceability and compliance with marine surveyor standards for vessel documentation and insurance purposes.

Perko's reputation in marine hardware stems from exacting tolerances and material selection that match the demands of saltwater exposure. A properly installed 1-1/2" thru-hull fitting of this design becomes invisible—it performs its single function reliably for the life of the vessel. Stock this replacement or upgrade fitting before the next haul-out.