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  • Rule 20R Marine Rule 800 Round Marine Bilge Pump (800-GPH, 12-Volt)
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Rule 20R Marine Rule 800 Round Marine Bilge Pump (800-GPH, 12-Volt)

by Rule
20 customer reviews
| 6 answered questions

List Price: $44.99
Price: $35.41 & FREE Shipping. Details
You Save: $9.58 (21%)
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
  • 3 Year Warranty
33 new from $35.41 1 used from $28.77
Special Shipping Information: Due to federal and international regulations, this product can only be shipped within the 50 states.

$35.41 & FREE Shipping. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

Rule 20R Marine Rule 800 Round Marine Bilge Pump (800-GPH, 12-Volt) + Rule 35A Marine Rule-A-Matic Switch (Mercury Free)
Price for both: $65.40

Buy the selected items together

Special Offers and Product Promotions

  • Save Big On Open-Box & Used Products: Buy "Rule 20R Marine Rule 800 Round Marine Bilge Pump (...” from Amazon Open-Box & Used and save 36% off the $44.99 list price. Product is eligible for Amazon's 30-day returns policy and Prime or FREE Shipping. See all offers from Amazon Open-Box & Used.

Product Description

Rule offers two 800 gph (3028 lph) styles - square and round versions. The square model (20F) offers 36 mounting variations as well as a gas resistant strainer base. 3/4" (19mm) discharge outlet. 12 Volts DC unless noted.

Product Details

  • Product Dimensions: 8 x 6 x 4 inches ; 12.8 ounces
  • Shipping Weight: 12.8 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B000O8B854
  • Item model number: 20R
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (20 customer reviews)
  • Amazon Best Sellers Rank: #19,662 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

4 of 4 people found the following review helpful By Chris D on July 27, 2010
Verified Purchase
Well built pump that has the highest pumping capacity for 3/4" hose. Quiet reliable and durable, it sits in the bottom of the boat for weeks until its called on to keep you afloat, and it does every time. I left the manual override switch on one time and it ran dry for hours and hours and did not get damaged.
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3 of 3 people found the following review helpful By Ron_B on January 9, 2012
Verified Purchase
I am using this to pump collected rain water. The pump is pretty small for the impressive output it has. I have a submersable 120 volt pump that does not deliver like this little one does. I'll most likely get another one.
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2 of 2 people found the following review helpful By Sierrawhaler on July 23, 2008
This Rule 20R bilge pump is a great little pump. This is the second one I have owned. The first lasted 8 years. I
had a gas line leak and the first pump sat in gasoline for long enough to soften the plastic. These pumps are quiet and very efficent.
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1 of 1 people found the following review helpful By Richard Hoffman on October 11, 2009
Verified Purchase
Items were the same as the ones that were originally on the boat. I purchased them as back up on my Hunter 28 so that it would be easy to change out if one failed.
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By funbear VINE VOICE on October 27, 2013
Verified Purchase
Used as a feed pump for warm water.... its been flawless after a few months... just be sure if you run a hose off the feed, lots of losses from the friction of the hose...so don't be fooled by GPH rating of the pump itself This pump, with a 3/4" 20 ft hose, generates 180 GPH, so 80% loss from the friction load the hose imposes, and the hose is about equal level....if you run the hose up, count on seven more significant losses. So its always better to oversize for your application, as its easy to throttle back with a valve if need be.
Sure would be nice if the maker would provide a significantly longer elect. cord to keep the connections far from the water source. How much do they save, a nickel?? hard to fathom the thought process.... hence why I took a star away. I had to jury rig a water tight elect. connection, which is never fail safe.
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By Keith R on August 10, 2013
Verified Purchase
There have been some negative reviews about failures after a year or so, but the product as received and used is working fine. It was a replacement for a pump/switch combo, the identical make and model, from my 2007 Proline 23 foot center console. The boat was in the water and the bilge pump failed - noticed high water level in the bilge after a few days of rain. So after replacing it with a new set (pump and switch) everything is fine. The old one lasted 6 years, which I think is good for salt water operations. if this fails any time soon I will change my opinion but it seems to be a solid performer.
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Verified Purchase
Part design was a direct snap in replacement to the existing pump. I recommend that you check the switch as well. a stuck switch is what made my existing pump go bad. Unfortunately the mercury switch is no longer available, but I did find a switch from another company that received good reviews as compared to the reviews for the replacement Rule float switch.
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Verified Purchase
New review... Failed after 2 seasons of barely any use. All of the plastic internals fell out. Motor runs, but won't pump. Disappointed.
1st review upon initial purchase.......This appears to be well-made. I liked the fact that it can run dry without burning up. Installed pretty quickly. This was cheaper than most others, and was able to run dry...so I bought it. It's pretty quiet too.
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Rule 20R Marine Rule 800 Round Marine Bilge Pump (800-GPH, 12-Volt)
This item: Rule 20R Marine Rule 800 Round Marine Bilge Pump (800-GPH, 12-Volt)
Price: $35.41
Ships from and sold by Amazon.com