Attwood 4505-7 Sahara S500 Automatic Bilge Pump, 12-Volt, 1.5-Amp Draw, ¾-Inch Interior Diameter Hose, 29-Inch 16-Gauge Wire
Attwood 4505-7 Sahara S500 Automatic Bilge Pump, 12-Volt, 1.5-Amp Draw, ¾-Inch Interior Diameter Hose, 29-Inch 16-Gauge Wire
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Attwood 4505-7 Sahara S500 Automatic Bilge Pump, 12-Volt, 1.5-Amp Draw, ¾-Inch Interior Diameter Hose, 29-Inch 16-Gauge Wire

Key item features

  • Reliable Performance: Reliably provides bilge water pumping for boats of any size.
  • Automatic Switch: Meets automatic switch pump requirements for vessels 20 feet and over with sleeping accommodations.
  • Compact Design: Compact and durable package includes pump, wire seals, strainer, and mercury-free switch in one unit.
  • Easy Installation: Installs quickly and easily in tight spaces, mounts horizontally only.
  • Efficient Pump: 12-volt, 1.5-amp draw pump is rated for 500 GPH performance at open flow (at voltage of 13.6 volts DC).
  • Included Accessories: Comes with a 29-inch length of 16-gauge caulked and tinned copper wire, and uses a -inch interior diameter hose.
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Customer ratings & reviews

4.2 out of 5 stars
stars87 ratings67 reviews
How item rating is calculated
  1. 5 stars69% (60)
  2. 4 stars11% (10)
  3. 3 stars5% (4)
  4. 2 stars5% (4)
  5. 1 star10% (9)

Reviews summary

Pros

  • : Offers good value without sacrificing performance.
  • : Process is quick and requires minimal effort.

Neutral

  • : Can be snug and precise, but may require exact matching.
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Showing 1-3 of 67 reviews

Aug 8, 2016
WaveJumper
5 out of 5 stars review

Verified Purchase

Used for my Waverunner

I purchased this as a backup to my failing siphon bilge system in my Waverunner and it works like a champ as you can see on jamesmaurer.com - Its flat bottom and design make it a perfect fit with the bottom of the hull and kicks on in big waves. I also attached an on/off switch so it does chew up battery life in big waves that might cause float to trigger without water. Works great!

Helpful?33RLH9HU00S411071160
Apr 8, 2014
Otis64
5 out of 5 stars review

Verified Purchase

good price for automatic

Has only been in use for about a month but has worked as intended. Seems to be decent quality. At this point I am very satisfied with purchase.

Helpful?33RLH9HU00S411071160
Apr 10, 2020
kadjflkadjf
5 out of 5 stars review

Verified Purchase

Works great....I wired it directly to the battery with the float switch. In this config you don't use the striped wire (that would go to a switch if you wanted to manually turn it on, but this thing has a manual/test button on the side to pump water out if it's not reaching the float switch.) Also worth noting is the depth of water required on this one to activate is much less than some other models...I bought 2 others and this was the only one that worked for me due to the minimal depth of water required to switch it on!

Helpful?33RLH9HU00S411071160