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Rule Industries 55S 3700 GPH Heavy-Duty Automatic Bilge Pump

Manufacturer

Rule Industries

<h3>Rule Industries: Five Decades of Marine Pumping Excellence</h3> <p>Since 1965, Rule Industries has been a trusted name in marine solutions, setting the industry standard with high-performance submersible bilge pumps. As part of Xylem's portfolio of water technology brands, Rule has built an exceptional reputation among commercial fishermen, recreational boaters, and marine professionals who demand equipment that performs when it matters most. As marine technology developed, Rule stayed ahead, delivering pump systems that became the go-to choice for commercial fishermen and recreational boaters alike.</p> <p>Every boat owner faces the same challenge: water intrusion is inevitable. Whether from rain, splash-over, or slow leaks, managing bilge water is critical to vessel safety and longevity. That's where Rule's engineering expertise becomes essential. Rule pumps have built their reputation in the field—through storms, mechanical failures, and those high-pressure situations where reliable water removal is the difference between a close call and a catastrophe.</p> <h3>Comprehensive Marine Water Management Solutions</h3> <p>Rule's product lineup centers on one core mission: keeping vessels dry and operational in any condition. Their <a href="/6623-rule-industries-electric-bilge-pumps-200350">electric bilge pumps</a> form the foundation of this commitment, offering flow rates from 360 GPH to over 3800 GPH to match any vessel size and water accumulation challenge. These pumps feature marine-grade construction designed to withstand salt spray, temperature extremes, and constant moisture exposure that would quickly destroy lesser equipment.</p> <p>Understanding that automation is key to peace of mind on the water, Rule offers multiple control solutions. Their <a href="/6623-rule-industries-float-switches-200426">float switches</a> provide reliable automatic activation when water levels rise, eliminating the need for constant monitoring. For comprehensive vessel protection, Rule's <a href="/6623-rule-industries-bilge-pump-switches-alarms-200163">bilge pump switches and alarms</a> deliver layered safety systems that alert operators to water intrusion while automatically managing removal. Rule Automatic Bilge Pumps feature built-in sensors that check for water every 2.5 minutes, ensuring continuous protection without manual intervention.</p> <p>Beyond bilge management, Rule provides specialized solutions for other marine applications. Their <a href="/6623-rule-industries-air-pumps-adaptors-200078">air pumps and adaptors</a> support livewell systems critical for fishing operations, while their extensive range of <a href="/6623-rule-industries-plumbing-parts-accessories-200786">plumbing parts and accessories</a> ensures that complete fluid management systems can be built, maintained, and upgraded using Rule components.</p> <h3>Engineering That Stands Up to Marine Environments</h3> <p>Rule's commitment to quality and durability makes their pumps the first choice among do-it-yourselfers and professional installers alike. The brand's pumps undergo rigorous testing to ensure they deliver rated flow rates even under challenging conditions. Their cartridge-style pump designs allow for easy maintenance—when debris clogs the strainer or impeller, the motor cartridge can be quickly removed for cleaning and reinstalled, minimizing downtime.</p> <p>High-quality materials handle salt spray, temperature swings, and constant moisture without breaking down, designed to keep working in conditions that destroy lesser equipment. This durability translates to real-world reliability for boaters who need equipment they can count on when far from shore, facing rough seas, or leaving their vessels unattended.</p> <h3>Why Marine Professionals Choose Rule</h3> <p>Rule's position in the marine industry reflects decades of proven performance. The brand's pumps are specified by boat manufacturers, recommended by marine technicians, and chosen by vessel owners who understand that bilge pump failure isn't just an inconvenience—it's a serious safety risk. From small recreational craft to larger commercial vessels, Rule provides scalable solutions backed by widespread availability through marine dealers and distributors worldwide.</p> <p>Whether you're replacing a worn pump, upgrading to automatic operation, or building a new vessel, Rule Industries delivers the marine pumping technology that keeps boats dry, protected, and ready for whatever conditions they encounter on the water.</p>

Part Number

55S
06/01/2036 4:42 AM
Sale Price

$420.71

In Stock (6)

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Usually delivered within 2 days

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Product Details

The Rule Industries 55S is a 3700 GPH automatic bilge pump that simplifies installation by eliminating the need for an external float switch. Using intelligent impeller resistance technology, this heavy-duty pump constantly monitors your bilge, automatically detecting water and pumping until dry.

How It Works:

Every 2.5 minutes, the pump performs an automatic bilge check. An electronic sensor detects water resistance on the impeller and activates the pump, continuing operation until the resistance is gone and the bilge is dry. This smart automation removes the complexity of traditional float switch installations.

Key Features:

  • 3700 GPH pumping capacity for high-volume water removal
  • Automatic operation with integrated electronic sensor eliminates external float switches
  • Compact footprint ideal for deep keel sumps and confined spaces
  • Integrated base with built-in strainer for easy debris protection
  • Quick-release pump housing removes easily for cleaning and maintenance
  • Rugged ABS plastic construction for marine durability
  • 12-volt DC operation standard for marine electrical systems

Perfect for sailboats, powerboats, and other marine applications where space is limited or traditional float switches are impractical. The Rule 55S combines reliable automatic operation with easy installation and maintenance.

Products specifications

Amperage

15.5 Amps at 12 Volts DC

Capacity

3700 Gallons per Hour

Diameter

1 1/2"

Voltage

12 Volts

Warranty Details

Three Years Limited

Quick checkout.

Very quick and simple

so far all good.

Easy shopping experience

Good service, great products and quick shipping. I received a good shipping discount using Google payment. Only problem was the item was shipped to my billing address instead of my shipping address.

Thanks! glad you had the parts!

Autoplicity is really awesome. They deliver quick and have a great staff to help you out. Give them a chance!

....

great prices and fast shipping

cheapest price anywhere super fast service will deal with again++++++++

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