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Product Details

Attwood shower sump system available in 500 and 750 GPH. This low cost shower drain setup incorporates an Attwood pump and automatic float switch to create an efficient drainage system for your boat's shower or other water drains.

Multiple inlets can be hooked up to more than one drain with different hose size options. The see-through top on the box allows you to see when the filter needs cleaning.

Tech Specs
ItemModelBox sizeLg x H x W (")
ATT-41411500 gphStandard10-1/2 x 4-1/2 x 8-1/8
ATT-41434750 gphLarge13 x 4-7/16 x 7-1/2
Info & Guides

Technical Information

  • Installs quickly and easily using slotted mounting feet.
  • Easy removal and cleaning with straight mesh filter
  • Quickly drains shower, sink or tub.
  • Pump automatically starts and removes accumulated water as the sump box fills.
  • Check valve in inlet manifold prevents pump from cycling and reduces standing water odor.
  • 1.4 Amp draw 12 Volt DC
  • 3/4 inch I.D. hose size.
  • Meets or exceeds all applicable standards of the ABYC and USCG

WARNING: These products may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

Reviews for Attwood Shower Sump Systems

4 of 4 Reviews

June 15, 2015

modifications can be a good thing or bad
By tom from va

Verified Purchase

shower sump was fine, but took 3 hours to install as the hose connections (shower, and 2 sinks) were not in the same place as the original shower sump (Also Attwood) and the hoses were cut for the old unit and it took some reconfiguring to get all the hoses connected to the sump box. Once on it worked great.

Bottom Line Yes, I would recommend to a friend

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July 13, 2014

Didn't work.
By Kevin from Toledo, OH

This was a direct replacement for a pump that failed. The new one simply doesn't work. When it does run, sometimes it pumps water, sometimes not. And when it does actually run and pump water, the pump won't shut off. I'm looking at other brands although the reviews I've read on the Rule pumps are just as bad.

Bottom Line No, I would not recommend to a friend

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May 28, 2012

Easy works great
By Rinker FV 340 Dottie's Dinghy from cayuga lake NY

Easy to install if you need to replace your existing pump. Works just like it is supposed to.

Bottom Line Yes, I would recommend to a friend

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May 22, 2008

The easy way to create a shower
By Waterwiz from No. Calif

The Attwood shower sump system beats the heck out of trying to assemble something on your own. the one piece unit makes putting in a shower a snap.

Bottom Line Yes, I would recommend to a friend

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