Click to enlargeAttwood Scupper Valve
Manufacturer: Attwood MarinePart #: 3876-3SKU: 66237
- Thru Hull
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Item #: 66237
Category: Fittings
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Description
Scupper Valve Provides a water exit for boats with self-bailing cockpits. Acetal construction.
Accommodates 3875B thru-transom thru-hull connector (screw holes must be drilled for installation. ) Diameter: 2-7/8" Use as a replacement valve for 3881 Thru-Transom Scupper Caution: Thru-Hull connectors are designed for installation above the water line only.
California Prop 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Specifications
| Brand | Attwood Marine |
|---|---|
| Part Number | 3876-3 |
| EverTide SKU | 66237 |
| UPC | 022697387639 |
| Mount | Thru Hull |
Specifications are provided by the manufacturer. Confirm fitment for your application before ordering, or contact us and we'll help.
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Returns & warranty
Returns are accepted within 30 dayson items that are unused and in their original packaging. Some items may be subject to a manufacturer restocking fee. Special-order items may not be eligible — if you're unsure, ask us before ordering.
Attwood Marine productscarry the manufacturer's standard warranty. For a warranty claim or a return authorization, see our full returns policy or contact us.
Marine Plumbing & Ventilation — frequently asked
- How do I size a bilge pump?
- Bilge pumps are rated in gallons per hour (GPH), but actual output is lower once you account for hose length and vertical lift. Choose a pump rated well above your expected worst-case water intrusion, and consider a second, higher-capacity pump plus a float switch for automatic operation.
- Can I use regular garden hose for my boat’s water system?
- No. Marine plumbing uses purpose-built hose rated for the specific system — potable water, sanitation, and raw-water/bilge hoses differ in pressure rating, temperature resistance, and permeation. Using the wrong hose causes odors, leaks, or contamination.
- Why is ventilation important on a boat?
- Ventilation clears moisture that causes mildew and rot, and — critically on gasoline boats — clears fuel vapors from the engine compartment before starting. Blowers, cowl vents, and dorade boxes keep air moving through cabin and engine spaces for safety and comfort.
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