GROCO 1-1/2" 90 Degree Hose Thru-Hull Fitting - HTHC-1500-S
Manufacturer Part #: HTHC-1500-S
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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.
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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.
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Superior Material: Cast from high-quality bronze, providing excellent resistance to galvanic corrosion in both saltwater and freshwater environments.
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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.
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Flanged Base: The wide flange provides a large surface area for marine sealant to create a 100% watertight seal against the hull.
⭐ Key Features
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1-1/2 inch hose barb size
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Integrated 90-degree elbow for compact installations
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Heavy-duty marine-grade bronze construction
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Excellent corrosion resistance for saltwater use
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Smooth internal passages for efficient water flow
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Suitable for above or below waterline installations
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Designed for long service life in demanding marine environments
🚤 Ideal For
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Bilge pump discharge systems
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Livewell and baitwell plumbing
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Cockpit and deck drains
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Marine sanitation and water systems
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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
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1 x Groco HTHC-1500-S Fitting: The bronze 90-degree body with serrated barb.
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1 x Bronze Thru-Hull Nut: Heavy-duty nut for securing the fitting to the hull.
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Note: Installation requires a marine-grade sealant (such as 3M 5200 for below-waterline) which is sold separately.
Installation & Maintenance
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Sealant: Always apply a liberal amount of sealant to the underside of the flange and the threads before tightening the nut.
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Bonding: Like all bronze underwater hardware, this fitting should be connected to the boat's bonding system to prevent electrolytic corrosion.
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Clamping: For safety, always use two stainless steel hose clamps on the barb for any connection located at or below the waterline.
GROCO 1-1/2" 90 Degree Hose Thru-Hull Fitting - HTHC-1500-S is backordered and will ship as soon as it is back in stock.
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