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GROCO 1-1/2" 90 Degree Hose Thru-Hull Fitting - HTHC-1500-S

$119.99 $197.00
SKU: 75392

Manufacturer Part #: HTHC-1500-S


GROCO 1-1/2" 90° Hose Thru-Hull Fitting – Bronze

MPN: HTHC-1500-S

Built for strength, safety, and long-term reliability, the GROCO 1-1/2" 90-Degree Hose Thru-Hull Fitting is a premium marine plumbing component designed for tight installations where straight thru-hulls won’t fit. The integrated 90-degree elbow allows hose routing inside the hull without sharp bends, reducing hose stress and improving flow.

Manufactured from high-quality cast bronze, this thru-hull fitting offers excellent corrosion resistance in both freshwater and saltwater environments. It’s ideal for bilge pump discharge, livewell drains, cockpit drains, and other below- or above-waterline plumbing applications where durability is critical.

 

  • Space-Saving Design: The 90-degree bend is ideal for installations near bulkheads or in shallow bilges, allowing the hose to run parallel to the mounting surface.

  • Superior Material: Cast from high-quality bronze, providing excellent resistance to galvanic corrosion in both saltwater and freshwater environments.

  • Secure Connection: Features a serrated hose barb designed to provide maximum grip for 1-1/2" ID marine hoses when used with double hose clamps.

  • Flanged Base: The wide flange provides a large surface area for marine sealant to create a 100% watertight seal against the hull.


⭐ Key Features

  • 1-1/2 inch hose barb size

  • Integrated 90-degree elbow for compact installations

  • Heavy-duty marine-grade bronze construction

  • Excellent corrosion resistance for saltwater use

  • Smooth internal passages for efficient water flow

  • Suitable for above or below waterline installations

  • Designed for long service life in demanding marine environments


🚤 Ideal For

  • Bilge pump discharge systems

  • Livewell and baitwell plumbing

  • Cockpit and deck drains

  • Marine sanitation and water systems

  • Tight or space-restricted thru-hull installations


📊 Specifications

Specification Details
Brand GROCO
Product Type Hose Thru-Hull Fitting
Hose Size 1-1/2 inch
Angle 90 Degree
Material Marine-Grade Bronze
Installation Thru-Hull
MPN HTHC-1500-S

⚓ Why Choose GROCO

GROCO is a trusted name in marine plumbing, known for robust bronze fittings that meet the demands of professional boat builders and serious boat owners. The HTHC-1500-S delivers reliable performance where failure is not an option.



In The Box

  • 1 x Groco HTHC-1500-S Fitting: The bronze 90-degree body with serrated barb.

  • 1 x Bronze Thru-Hull Nut: Heavy-duty nut for securing the fitting to the hull.

  • Note: Installation requires a marine-grade sealant (such as 3M 5200 for below-waterline) which is sold separately.

Installation & Maintenance

  • Sealant: Always apply a liberal amount of sealant to the underside of the flange and the threads before tightening the nut.

  • Bonding: Like all bronze underwater hardware, this fitting should be connected to the boat's bonding system to prevent electrolytic corrosion.

  • Clamping: For safety, always use two stainless steel hose clamps on the barb for any connection located at or below the waterline.


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