Click to enlargeAttwood 500 GPH Shower Sump MK2 System - 12V
Manufacturer: Attwood MarinePart #: 5141-4SKU: 108040
- 3A
- 12V
Item #: 108040
Category: Bilge Pumps
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Description
500 GPH Shower Sump MK2 System - 12V Attwood’s shower sump systems deliver the performance you’ve been asking for. Choose from standard or large box sizes.
They offer fast water flow into and out of the sump. The lid snaps into place to allow quick installation (and removal for cleaning) and includes a gasket to seal the sump box against overflow.
The sump box even includes an air vent to prevent airlocks. It meets or exceeds all applicable standards of the ABYC and USCG.
Specifications: Amp Draw: 1. 4 500 GPH Rated Voltage: 12V Fuse Size: 3A Outlet Hose Size: 3/4" I.
D. Wire/Connector: 22" wire
Specifications
| Brand | Attwood Marine |
|---|---|
| Part Number | 5141-4 |
| EverTide SKU | 108040 |
| UPC | 022697028945 |
| Voltage | 12 V |
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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