Seachoice Thru-Hull Connector w/ Broad Flange, Fits 3/4 In. ID Hose, 1-1/4 In. Max Hull
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Seachoice Thru-Hull Connectors with a broad flange are molded from durable, high-impact plastic to help you create a reliable above-waterline hose connection. This connector is designed to work with 3/4 in. ID hose and fit hull thicknesses up to 1-1/4 in., making it a common choice for bilge pump exhaust plumbing and similar above-waterline discharge/vent applications.
Key Features
- Molded plastic with broad flange for added mounting surface area
- Designed for use as an exhaust port for a bilge pump
- Fits 3/4 in. ID hose (19 mm)
- Max hull thickness: 1-1/4 in.
- Not recommended for use below the waterline
- Meets ABYC “Safety Standards for Small Craft” (per product literature)
Product Compatibility
- Bilge pump exhaust plumbing (above-waterline use)
- Marine plumbing discharge/vent connections that use 3/4 in. ID hose
- General above-waterline thru-hull hose connections
Product Details
- Brand: Seachoice
- Model/SKU: 50-18051
- Part type: Thru-hull connector with broad flange
- Hose compatibility: 3/4 in. ID hose (19 mm)
- Flange: broad flange
- Max hull thickness: 1-1/4 in.
- Use note: Not recommended for use below the waterline
- Material: durable, high-impact plastic (molded plastic)
Parts Desk Insights
Best Use Case: Use for above-waterline bilge pump exhaust port connections where you need a broad-flange thru-hull fitting that supports 3/4 in. ID hose and hull thickness up to 1-1/4 in.
Common Issues: Most installation issues come from waterline placement and hull thickness mismatch—confirm the intended mounting location is above the waterline and that your hull thickness is within the 1-1/4 in. maximum. Also double-check hose size (3/4 in. ID / 19 mm) before assembly to avoid weak sealing.
Related Products & Accessories
- Seacocks & Thru-Hulls - Browse related thru-hull fittings and seacock components.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.