Best Rule in 2026

Last Updated: Sep 27, 2023

At a Glance: Our Top Picks

Rule 35A Rule-A-Matic Bilge Pump Float Switch, Mercury Free,White
#TOP1
Rule 35A Rule-A-Matic Bilge Pump Float Switch, Mercury
9.8
PM SCORE
Rule 40A Rule-A-Matic Plus Bilge Pump Float Switch, 12, 24 or 32 Volt, Moisture Tight Seals , White , Small
#TOP2
Rule 40A Rule-A-Matic Plus Bilge Pump Float Switch,
9.7
PM SCORE
Boating Accessories New Rule 1000 Pump 12V (Old 800#20) RUL 20A
#TOP3
Boating Accessories New Rule 1000 Pump 12V (Old
9.7
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the best Rule of 2026

Rule 35A Rule-A-Matic Bilge Pump Float Switch, Mercury Free,White

RULE
35A
3.50 X 5.00 X 8.25 Inches
0.25 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

A genuine Rule product, don't settle for anything less

Year after year, the Rule-A-Matic has been the switch of choice for boaters the world over

Switch is removable from the base for easy cleaning

Completely sealed metal capsules enhance flawless operation

A mercury free snap switch tested to over one million cycles

Marine grade "blocked" wire

Rule 40A Rule-A-Matic Plus Bilge Pump Float Switch, 12, 24 Or 32 Volt, Moisture Tight Seals , White , Small

RULE
40A
9.00 X 6.00 X 4.00 Inches
0.40 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Sleek and rugged with a strong, fully integrated impact resistant cover to protect against debris and jamming

14 gauge highly abrasive resistant marine grade wire

Built-in test feature

Designed for pumps drawing up to 20 amps

Will turn the pump on when the water level reaches 2" (51mm) and will turn the pump off when water level falls to 3/4" (19mm)

Can also be used to operate high water alarm systems

Boating Accessories New Rule 1000 Pump 12V (Old 800#20) Rul 20A

RULE
20A
3.00 X 5.00 X 7.00 Inches
0.20 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

1000 Gallons Per Hour

12V DC Power

Port Type: 1-1/8" Hose

High efficiency motor

Completely submergible

Rule 403Fc Livewell / Baitwell Pump, Tournament Series, Removable Motor Cartridge, 800 Gph, 12 Volt,White/Red

RULE
403FC
10.00 X 7.00 X 3.00 Inches
1.40 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HARVARD MARINE 9.64

Features

For thru-hull applications, tapered 3/4" NPT pickup tube

Powerful and long lasting, outstanding performance as well as the versatility of replacing the motor cartridge if the motor expires

Cartridge feature also allows easy access to impeller for cleaning and maintenance

Replacing the motor cartridge only allows the fittings and hose to remain totally intact

3 year warranty

Rule 37A Superswitch Bilge Float Switch, Moisture Tight Seals, 12, 24 Or 32 Volt , White

RULE
37A
3.00 X 6.00 X 8.25 Inches
0.33 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HARVARD MARINE 9.64

Features

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

Rule 20F Marine 800 Square Marine Bilge Pump (800-Gph, 12-Volt), Red/White/Blue

RULE
20F
4.00 X 6.00 X 8.00 Inches
0.96 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

sport_type: Boating

Rule 10, Bilge Pump, 2000 Gph, Non-Automatic, 12 Volt

RULE
10
5.25 X 6.00 X 4.50 Inches
1.41 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

A genuine Rule product, don't settle for anything less

More pumping capacity and more exclusive design features than any comparable competitive pump at a lower cost

1-1/8 inch (28.6 millimeter) hose barb discharge outlet, 12 Volts DC, limited 3 year warranty

3 Year Warranty

Rule 405Fc Livewell / Baitwell Pump, Tournament Series, Removable Motor Cartridge, 1100 Gph, 12 Volt

RULE
405FC
10.00 X 7.00 X 5.00 Inches
0.30 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Autoplicity ✅ 9.71

Features

For thru-hull applications, tapered 3/4" NPT pickup tube

Powerful and long lasting, outstanding performance as well as the versatility of replacing the motor cartridge if the motor expires

Cartridge feature also allows easy access to impeller for cleaning and maintenance

Replacing the motor cartridge only allows the fittings and hose to remain totally intact

3 year warranty

#TOP9

Rule 09, 2000 Gph Gold Series Bilge Pump

RULE
09
13.00 X 13.75 X 5.75 Inches
3.30 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Lifeline Brands 9.85

Features

High pumping capacity and reliability at a lower cost, ability to run dry for short periods

1-1/8 inch (28.6mm) Discharge outlet

Pump and switch are stand-alone products, compact, efficient, long-life motors

Easy-Clean, snap-lock strainer bases

Rust and corrosion protection, silent and vibration less operation

Exclusive Rule moisture tight seals

Rule manufactured long life, heavy duty motor for superior quality

A double insulated long stack motor

Heat resistant acetal resin housing

Advanced features throughout supported with an exclusive 5 year warranty

Exclusive Rule moisture tight seals

Rule manufactured long life, heavy duty motor for superior quality

A double insulated long stack motor

Heat resistant acetal resin housing

Rule Lp900S Lopro Bilge Pump - 900 Gph, Automatic, Beige

RULE
LP900S
12.00 X 9.00 X 4.00 Inches
1.20 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Lifeline Brands 9.87

Features

Flow Rate: 900 GPH

13 VDC Power

Designed for tight spaces; Dimensions: 2.4" height

Pump only operates when water is present

Discharge body mounts horizontally or vertically and swivels up to 180°

#TOP11
Best For Rule

Rule 33Ala Marine High Water Bilge Alarm (Mercury Free, 12-Volt),White

RULE
33ALA
4.00 X 10.00 X 6.00 Inches
0.20 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Consists of a float switch and an in-dash gauge that features both a visual and audible 85 db alarm

Allows an unarmed compartment to be constantly monitored

Complies with CFR 182. 530, which requires a visual and audible alarm in each unmanned space on commercial vessels at least 26' in length

For use with pumps with a current draw of up to 20 amps @ 12 volts

Size: 2-1/4" x 5" x 2-1/64"

Sport type: Boating

#TOP12
Best For Rule

Rule 27D 1100 Gph Marine Bilge Pump, Non-Automatic, Submersible, 12 Volt

RULE
27D
3.75 X 5.88 X 8.00 Inches
0.80 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Fast&Shipping✅ 5.85

Features

A genuine Rule product, don't settle for anything less

High pumping capacity and reliability at a lower cost, ability to run dry for short periods

Pump and switch are stand-alone products, compact, efficient, long-life motors

1-1/8 inch (38mm) hose barb

3 year warranty

#TOP13
Best For Rule

Rule 24 Submersible Bilge Pump, 360 Gph, 12 Volt

RULE
24
7.00 X 5.50 X 2.00 Inches
0.70 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Nygmat 9.69

Features

A geniune Rule product, don't settle for less

Outstanding quality and value

Economically priced and designed for small boats

3/4 inch discharge outlet

3 year warrant

#TOP14
Best For Rule

Rule Marine Tournament Series Livewell Pump, 800 Gph

RULE
403STC
9.53 X 17.78 X 36.20 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Marine and RV Pumps

Manufacturer: Rule

Made in Mexico

Country of origin: China

Rule Shower Drain Box W/1100 Gph Pump - 12V [99B], Standard

RULE
99B
10.00 X 11.00 X 5.00 Inches
4.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Made in Mexico

Product Type :BINOCULAR

Package Dimension :14.909 cm x 25.704 cm x 35.509 cm

Package Weight :1.969 kg

#TOP16
Best For Rule

Replacement Strainer Base For Round 1500-2000 Gph Bilge Pumps

RULE
278
2.01 X 5.98 X 9.02 Inches
0.01 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
DIRECT PRIME 9.96

Features

#TOP17
Best For Rule

Rule 27S Marine Rule 1100 Automatic Marine Bilge Pump (1100-Gph, 12-Volt)

RULE
27S
3.75 X 6.00 X 8.00 Inches
3.81 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Boating Accessories 9.40

Features

3 Year Warranty

#TOP18
Best For Rule

Rule 403C Marine Tournament Series 800 Livewell Pump (Angled Thru Hull Fitting, 12-Volt) , White/Red

RULE
403C
11.00 X 10.00 X 5.00 Inches
2.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
rockymountainrvparts 9.63

Features

Rotatable base for positioning discharge hose

Discharge Hose Size: 3/4"

13 VDC Power

Flow Rate: 800 GPH

Fit type: Universal Fit

#TOP19
Best For Rule

Rule Il280P 12 Volt 280 Gph Inline And Submersible Pump

RULE
IL280P
13.30 X 9.00 X 2.40 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Delivers up to 500 GPH

Pumps fresh and seawater, diesel and anti-freeze

Washdown for cars, vehicles, anchors and decks

Deck shower, under engine bilge pumping, garden watering, sink draining, engine winterizing

280 GPH (1080 LPH), 12V DC

#TOP20
Best For Rule

Rule 56D 4000 Gph Marine Bilge Pump, Non-Automatic, 12 Volt , White/Red

RULE
56D
13.00 X 8.00 X 11.50 Inches
5.90 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed for the toughest applications

4000 gallons per hour (15140 liters per hour) pump optimizes Rule's exclusive design features to produce the highest capacity available for a pump its size

2 inch (51mm) discharge outlet

3 year warranty

#TOP21
Best For Rule

Rule 3004.7723 Lp900D Lopro Bilge Pump - 900 Gph

RULE
LP900D
10.00 X 9.00 X 4.00 Inches
0.68 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Item Package Height:24.1 Centimeters

Item Package Length:5.6 Centimeters

Item Package Width:21.3 Centimeters

Product Type:Auto Accessory

#TOP22
Best For Rule

Rule Industries 24Da-35A 360 Bilge Pump With Switch, Black

RULE
24DA-35A
9.00 X 8.00 X 3.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Autoplicity ✅ 9.69

Features

Brand: Rule Industries

Part Number: 24DA-35A

360 Bilge Pump With Switch

Non-Automatic, 12v with Rule-A-Matic Float Switch

#TOP23
Best For Rule

Rule Db412 Dry Bilge Pump With Panel Switch

RULE
DB412
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Rule now offers the best, most effective method of removing almost all of the water in your bilge, leaving 1/8” or less, keeping your bilge fresh, clean, and dry.

Drains the bilge almost dry

Panel switch included

Filter-free design

Self-priming to 9.5' (3m)

Rotating pump head and ports

#TOP24
Best For Rule

Rule Mate 2000 Gph Fully Automated Bilge Pump - 24V

RULE
RU200024
8.00 X 7.00 X 5.00 Inches
4.35 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Lifeline Brands 9.87

Features

Gallons Per Minute: 33.3 GPM, Volts: 24v

Gallons Per Hour: 2000 GPH

Operation: Compatible with Automatic

Upc: 042237114303

#TOP25
Best For Rule

Rule 500 Gph Standard Bilge Pump Kit W/Float Switch - 12V

RULE
25DA-35A
8.00 X 9.00 X 3.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
CE Showroom 9.89

Rule Shower Drain Box W/Pump (Option: 24V, 1100 Gph)

RULE
99B-24
11.00 X 10.00 X 6.00 Inches
4.15 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Less Is Always More ✱AUTHORIZED SELLER✱ 9.74

Features

LONG LIFE. Upgrade Model 500Watt, 2/3 HP strong electric motor and copper wires inside, with a low noise and stainless steel non clog blades.

#TOP27
Best For Rule

Rule Bilge Pump Submersible 800 Gph

RULE
20F
8.00 X 5.90 X 3.60 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
General Electronics and more! 9.69

Features

800 GPH

Submersible

Ignition protected

36 variations of mounting

Modular

#TOP28
Best For Rule

Rule Submersible Bilge Pump 20A - 1000Gph

RULE
20A
2.20 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
HARVARD MARINE 9.63
#TOP29
Best For Rule

Rule 2000 G.p.h. Non-Automatic Bilge Pump - 24V

RULE
12
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Stone Meadows General Store 5.78

Features

Includes Rule 2000 G.P.H. Non-Automatic Bilge Pump - 24V

Gallons Per Hour = 2000 | Gallons Per Minute = 33.3 | Operation = Non-Automatic | Outlet Size = 1-1/8 | Power - Max Continuous (Amps) = 4 amps | Volts = 24v

#TOP30
Best For Rule

Rule 27Sa-24 Bilge Automatic Pump

RULE
27SA-24
4.00 X 2.50 X 4.00 Inches
0.90 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

High efficiency, low AMP motor

Stainless-steel shaft

Includes backflow preventer

Rule on Amazon: A Comprehensive Review

As an online shopper, it's crucial to make informed decisions. This review will focus on Rule, a brand that has made its presence felt on Amazon. With its wide range of products in Boat Bilge Pumps, Rule has become a go-to for many shoppers.

Product Range

Rule offers a vast product count of 34 items. This diverse selection caters to a wide array of needs and preferences, making it a versatile brand for consumers.

Quality and Pricing

Quality is a defining factor for any brand. Based on customer feedback and ratings, Rule's products have an average rating of 7.1 out of 10, indicating a high level of customer satisfaction.

When it comes to pricing, Rule has products ranging from a minimum price of $11.95 to a maximum of $292.00, with an average price of $97.21. This pricing structure caters to a wide range of budgets, making Rule an accessible choice for many shoppers.

Customer Service

Customer service is the backbone of any successful online brand. Rule is sold by lifeline brands wholesale marine amazon.com harvard marine 4wheel online autoplicity ✅ fast&shipping✅ direct prime boating accessories landmarinetoys nygmat stone meadows general store general electronics and more! rockymountainrvparts less is always more ✱authorized seller✱ ce showroom and marine engine depot, who are known for their commitment to customer satisfaction. They have been responsive and helpful, according to customer reviews and feedback.

Shopping Experience

The shopping experience on Amazon with Rule has been largely positive. The brand's wide range of products, combined with the ease of navigation on Amazon, has made shopping a breeze for many customers.

Delivery and Packaging

Delivery and packaging are yet another aspect where Rule shines. Items are delivered in a timely manner and the packaging ensures the products reach the customers in pristine condition.

Conclusion

In conclusion, Rule offers a wide range of quality products at varying price points, making it a brand worth considering for your next Amazon purchase. Their commitment to customer service, combined with a seamless shopping experience, makes Rule stand out in the crowded Amazon marketplace.

Overall Rating

Based on the analysis of product range, quality, pricing, customer service, shopping experience, and delivery, we rate Rule [7.1 out of 10 stars].