Attwood 5141-1 Marine Shower Sump System Mk2, 500 GPH Pump, 12V, Standard Sized Box

• COMPACT MARINE DRAINAGE: 500 GPH flow rate powered by 12V, ideal for small to mid-sized boats with limited space
• SPACE-SAVING BOX: Low-profile sump box fits snugly in tight compartments without sacrificing performance
• SNAP ON LID WITH GASKET: Prevents leaks and overflow while allowing easy access for cleaning and maintenance.
• AIR-LOCK ELIMINATION: Patented X-Air Impellor clears trapped air for reliable pumping
• BUILT FOR MARINE USE: Corrosion-resistant materials and ABYC/USCG compliance ensure long-term reliability

The Attwood 5141-4 Shower Sump Pump System is a compact, high-performance solution designed to keep your boat’s shower area dry. With a powerful 500 GPH capacity and 12V operation, it efficiently removes grey water from showers and sinks. The low-profile box fits snugly in tight spaces, while the snap-on lid with gasket allows for quick installation and protects against overflow. An integrated air vent helps eliminate airlocks, ensuring consistent pump performance. Built to meet ABYC and USCG standards, this sump system delivers dependable drainage for marine environments—whether you're cruising, fishing, or living aboard.