Operation Mode | One |
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Current Rating | 20 Amps |
Operating Voltage | 12 Volts |
Contact Type | One |
Connector Type | One |
Brand | Rule |
Terminal | Marine-grade |
Item Dimensions LxWxH | 3 x 6 x 8.25 inches |
Contact Material | One |
International Protection Rating | IP54 |
Connectivity Protocol | X-10 |
Color | White |
Unit Count | 1.0 Count |
Number of Items | 1 |
Item Package Dimensions L x W x H | 7.68 x 5.51 x 2.91 inches |
Package Weight | 0.18 Kilograms |
Item Weight | 5.28 ounces |
Brand Name | Rule |
Country of Origin | United States |
Warranty Description | 5 years |
Model Name | Rule 37A SuperSwitch Bilge Float Switch, Moisture Tight Seals, 12, 24 or 32 Volt , White |
Suggested Users | Bilage Pump, Pump, Filter, Portapot, aerator, sanitation, Holding Tanks |
Manufacturer | Rule |
Part Number | 37A |
Style | Float Switch |
Included Components | Rule 37A SuperSwitch Bilge Float Switch, Moisture Tight Seals, 12, 24 or 32 Volt , White |
Size | 2-1/4" x 5" x 2" |
Sport Type | Boating |
Fishing Technique | Rule 37A SuperSwitch Bilge Float Switch, Moisture Tight Seals, 12, 24 or 32 Volt , White |
Other Sellers on Amazon
91% positive over last 12 months
74% positive over last 12 months
Rule SuperSwitch Float Switch, Moisture Tight Seals, 12, 24 or 32 Volt
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Purchase options and add-ons
Operation Mode | One |
Current Rating | 20 Amps |
Operating Voltage | 12 Volts |
Contact Type | One |
Connector Type | One |
Brand | Rule |
Terminal | Marine-grade |
Item Dimensions LxWxH | 3 x 6 x 8.25 inches |
Contact Material | One |
International Protection Rating | IP54 |
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About this item
- Rule-A-Matic Float Switch 37A
- Removable base for easy cleaning and servicing
- Mercury-free snap switch tested to over one million cycles and marine-grade blocked wire
- Designed for pumps drawing up to 14 amps at 12 volt DC
Frequently bought together
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Product Description
The non-mercury SuperSwitch is designed for the toughest applications. Design includes marine-grade, 14 gauge blocked wire, a larger float for increased buoyancy, removable base for easy servicing and a snap switch design capable of handling pumps drawing up to 20 amps at 12 volt DC.
Product information
Technical Details
Additional Information
ASIN | B000O8DBGS |
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Customer Reviews |
4.5 out of 5 stars |
Best Sellers Rank | #45,878 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #47 in Boat Bilge Pumps |
Date First Available | March 15, 2007 |
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the quality, ease of installation, and value of the electronic switch. For example, they mention it works great, the wiring was easy, and the setup was simple. That said, some appreciate the excellent price.
AI-generated from the text of customer reviews
Customers like the quality of the electronic switch. They say it works great, is simple to install, and is a solid performer. Some say that it turns on exactly as needed and has not given them any trouble. Overall, most are satisfied with the quality and performance of the product.
"...It turns on exactly as needed, although it took some adjusting of the mounting height so that it would turn *off* at the right time, otherwise while..." Read more
"...fails any time soon I will change my opinion but it seems to be a solid performer." Read more
"...EVERY single non-Rule switch I installed on my boat has failed within 7 months of installation. Lesson learned...." Read more
"...The switch has not given me any trouble, but it is on my big backup pump and doesn't touch water unless the small lower pump fails to pump fast..." Read more
Customers find the installation of the electronic switch to be easy. They mention that the mounting holes fit, the wiring was easy, and the setup was simple.
"...Wiring was easy, with the new pumps and in dash switch (also reviewed). Now I have one pump wired to turn on automatically, or both manually...." Read more
"Update: switch failed after 3 yearsEasy installation and the mounting holes fit my old ones...." Read more
"...Installed this in my boat the day it arrived. Installation went easily, although the hole pattern for the screws was different than the switch I was..." Read more
"Switch seems to be of great quality. Hookup was simple. It's activation and deactivation is very definitive and it works very well...." Read more
Customers like the value of the electronic switch. They mention it's an excellent price on a necessary item.
"...It was cheaper than any local shop and with PRIME delivery it was super fast. Amazon does it again!!" Read more
"...Came ahead of scheduled delivery and packaged well. Best price on the internet. Would highly recommend." Read more
"Just what we needed, good price" Read more
"...Over priced, not reliable." Read more
Customers are dissatisfied with the pump. They mention that it doesn't drop when it should, and it ultimately burns out the pump, causing it to fail. Some say that the pump sticks open and runs all the time.
"...The boat was in the water and the bilge pump failed - noticed high water level in the bilge after a few days of rain...." Read more
"...Float switch doesn't drop when it should and ultimately burns out pump. 4 float switches and four pumps in 2 years" Read more
"...All of mine died in less than four months. My oldest ones lasted almost 20 years those are the ones that had mercury in it...." Read more
"...I've gone through two of these, first one failed on and burned up my pump, 2nd one failed off and cause shower sump to flood into boat...." Read more
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Top reviews
Top reviews from the United States
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I've tested the switch in my driveway by using the garden hose, and flooding my bilge. It turns on exactly as needed, although it took some adjusting of the mounting height so that it would turn *off* at the right time, otherwise while cruising on step it may have run the pumps without any water at the pump.
Overall VERY happy with this switch, although I cannot comment on its' longevity. Hopefully it is buily well enough to last me many years. Only time will tell, and if it fails anytime soon I will come back and edit my review to reflect that (although it does seem to be built well)
Easy installation and the mounting holes fit my old ones. Compared to my older model this one gives a satisfying "click" when it engages. My understanding is that the Rule Pumps/Switches are the industry standard for commercial passenger vessels and the only "UL listed" ones, for whatever that's worth.
Reviewed in the United States on October 24, 2023
https://www.youtube.com/watch?v=KrfZZXFSc7E
Been running it in the back of my boat for a couple weeks now and works like a charm.
Top reviews from other countries
Update - while the switch quality was poor, the Rule customer service was excellent. They responded immediately and have immediately shipped a replacement. So keep your receipt.
Less than months on the new one and it's pulling the same stunts, in fresh clean water no-less.
I've better things to waste time on than bilge work and am extremely disappointed with this product.