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Rule Industries RM1100B Rule-Mate Automatic Bilge Pump 1100 GPH 12V

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

RM1100B
06/04/2036 1:43 AM
Sale Price

$124.07

In Stock (10+)

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Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

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Product Details

The Rule Industries RM1100B Rule-Mate is a fully automated bilge pump featuring advanced solid-state water sensing technology that eliminates the need for a separate float switch. This next-generation submersible pump delivers 1100 GPH of powerful water removal while operating at just 12 volts, keeping your bilge clear of nuisance water with intelligent automatic operation.

Auto Sense Intelligence:

The RM1100B utilizes an internal level sensor that automatically activates when water reaches 2 inches (5cm) and shuts off when the water level drops to 3/8 inch (0.9cm). The sensor's unique field effect technology measures dielectric constant and recognizes water only—meaning straight motor oil in the bilge will not activate the pump, making it an eco-friendly choice for protecting our waterways.

Key Features:

  • 1100 GPH flow rate with optimized impeller providing up to 10% more flow at the same amperage
  • Compact design—2/3 the size of previous models for easier installation in tight spaces
  • Built-in backup feature prevents continuous running if sensor becomes fouled by debris; pump reverts to 2.5-minute cycle mode
  • Built-in thermal cut-off (TCO) provides added protection for pump and vessel
  • Integral check valve for back-flow prevention reduces residual water, minimizing odor
  • Hidden air vents help prevent air-locking in challenging plumbing installations
  • Threaded discharge port accepts 1 inch or 1-1/8 inch hose barbs (both included)
  • Submersible and ignition protected
  • Anti-fouling impeller design

Specifications:

  • Voltage: 12V DC
  • Amp Draw: 3.8A
  • Recommended Fuse Size: 7.5 amp
  • Flow Rate: 1100 GPH (4164 LPH)
  • Discharge Options: 1 inch or 1-1/8 inch threaded hose barbs
  • Height: 4.5 inches
  • Footprint: Approximately 3.4" L x 2.9" W

What's Included:

  • RM1100B bilge pump with integral sensor
  • Check valve
  • 1 inch hose barb
  • 1-1/8 inch hose barb

The Rule RM1100B replaces the previous RM1100A model and comes backed by a 3-year limited warranty. This pump is ISO8846 marine (ignition) and ISO8849 marine (bilge pump) compliant, ensuring reliable performance and safety for your vessel.

Products specifications

Amperage

3.8

Capacity

1100 Gallons per Hour

Diameter

3/4 Inch1 Inch & 1 1/8 Inches

Voltage

12 Volts

Activation Method

Automatic

Warranty Details

Three Year Limited Warranty

The right part at an affordable price.

Had the part I needed at the best price.

Very easy to use.

Quick and fast

SO FAR SO GOOD

very easy order proceedure

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