Description

2-1/2″ Thru Hull Outlet SS | Marine-Grade Stainless Steel Discharge Fitting

The 2-1/2″ Thru Hull Outlet SS is a premium marine-grade stainless steel thru hull fitting designed to provide safe, efficient, and corrosion-resistant water discharge for boats, yachts, and offshore vessels. Manufactured from high-quality SS316 stainless steel, this thru hull outlet is built to withstand harsh saltwater environments, extreme weather, and continuous vibration, making it an essential component in professional marine plumbing systems.

A thru hull outlet plays a critical role in any vessel by allowing water to exit safely from the hull without risking leaks or backflow. The 2.5-inch size is ideal for medium-to-large flow systems such as bilge pump outlets, engine cooling discharges, livewell drains, air-conditioning drains, and grey water systems. Its smooth internal bore ensures maximum flow efficiency while reducing turbulence and pressure loss.

This stainless steel thru hull outlet is precision-engineered for strength and reliability. The wide flange design distributes pressure evenly across the hull, creating a tight, watertight seal. Whether installed above or below the waterline, the SS316 construction guarantees long-term resistance against corrosion, rust, pitting, and chemical exposure.

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Specifications & Key Features

• Size: 2-1/2 inch diameter

• Material: SS316 marine-grade stainless steel

• Design: Thru-hull outlet for safe water discharge

• Finish: Smooth, polished corrosion-resistant surface

• Durability: Shock-resistant, vibration-resistant, rust-proof

• Compatibility: Bilge pumps, cooling systems, water drains, manifolds

Why Choose the 2-1/2″ Thru Hull Outlet SS?

The SS316 stainless steel construction ensures exceptional performance in aggressive marine environments. Unlike plastic or brass alternatives, this stainless steel thru hull outlet resists cracking, corrosion, and deformation, offering a long-term, maintenance-free solution.

Its 2-1/2 inch internal diameter allows high-volume water flow, preventing pressure buildup and ensuring your bilge, cooling, and drainage systems work efficiently. The precision-machined threads and smooth bore allow easy hose connection and secure sealing, reducing the risk of leaks or system failure.

This fitting is ideal for yachts, commercial vessels, fishing boats, workboats, and offshore platforms where reliability and safety are critical. By upgrading to a stainless steel thru hull outlet, you protect your vessel from water ingress and system inefficiencies.

Applications

• Bilge pump discharge systems

• Engine cooling water outlets

• Grey water and air-conditioning drains

• Livewell and bait tank outlets

• Marine and industrial water discharge systems

Why Buy from Climax Marine?

At Climax Marine, we specialize in marine stainless steel fittings, thru hull outlets, pumps, impellers, hoses, and plumbing accessories trusted by professionals across the marine industry. Our products are tested for durability, safety, and performance in real-world marine conditions.

When you buy from Climax Marine, you get quality assurance, expert support, and reliable marine hardware that keeps your vessel operating safely and efficiently.

Upgrade your marine plumbing system today with the 2-1/2″ Thru Hull Outlet SS – a corrosion-resistant, high-flow, and long-lasting solution for all your marine discharge needs.

🔗 Explore all stainless steel fittings:
https://climaxmarine.com/stainless-steel-fittings-page/