Rule is a trusted global leader in submersible bilge pumps and accessories for both recreational and small commercial boats. Their range of high-quality products includes submersible bilge pumps, ventilation blowers, rule mate automatic bilge pumps, switches, and alternative energy with rechargeable bilge pumps.
Rule Pumps: The Industry Standard for Quality and Reliability
With a reputation for quality, assurance, and exceptional customer care built over 35 years, Rule has become the industry standard for both manual and automatic submersible bilge pumps. These automatic computerized sump pumps are used for draining pools, pool covers, basements, garages, utility rooms, sumps, boats, and other utility applications.As part of Xylem, Rule remains the top choice for boaters and manufacturers worldwide—often paired with reliable Bilge Pump Float Switches for complete bilge management.
Fast deliveries of yacht equipment, calculation, selection of analogues and spare parts. Send us your request and we will contact you ASAP with a solution. We deliver in Cyprus, throughout Europe and worldwide. More than 10 years of experience.
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1-2 weeks delivery time The Rule Rule-A-Matic float switch is a narrow-design automatic bilge pump switch designed to turn a bilge pump on as water rises and off once water is pumped out. It is mercury-free to help minimize rapid on/off cycling, includes a fuse holder, and is rated up to 14A on 12V to 24V DC systems. Dimensions include 40mm width, 110mm height at max lift, 51mm fixing hole center spacing, and a product weight of 0.1 kg. |
$ 73.11
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1-2 weeks delivery time The Rule Model 36 float switch guard is a protective accessory designed to shield a bilge pump float switch from damage caused by debris. It is easy to install and helps maintain proper operation and longevity of the bilge pump system. |
$ 10.46
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1-2 weeks delivery time The Rule 360 submersible pump is a compact 12V DC unit rated at 2.5A with a water capacity of 23 l/min and a maximum head height of 2 m. It uses a 19 mm connection and has overall dimensions of 8.9 x 6.0 cm. |
$ 42.15
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1-2 weeks delivery time The Rule 3700 submersible pump is a 12V unit with a 25A motor, rated for a capacity of 233 l/min and a maximum head height of 4 m. It uses a 38 mm connection and has dimensions of 18.4 x 12.4 cm. |
$ 401.58
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1-2 weeks delivery time The Rule 3700 submersible pump operates on 24V with a 15A draw for fast drainage and water transfer. It provides a capacity of 233 l/min with a maximum head height of 4 m and uses a 38 mm connection. Overall dimensions (height x diameter) are 18.4 cm x 12.4 cm. |
$ 414.18
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1-2 weeks delivery time The Rule 37A automatic float switch controls a pump by switching on at a 51 mm water level and switching off at 19 mm. It is mercury-free, corrosion-resistant, and uses long-life seals with waterproof grommet protection and blocked wiring. The unit has a detachable mounting base and supports pumps up to 20A (12V), 10A (24V), and 6.5A (32V); listed dimensions include 5.7 cm (H) x 12.7 cm (L) x 5.1 cm (W) and 105 mm (L) x 40 mm (W) x 110 mm (H at maximum lift), with product weight 0.19 kg. |
$ 96.53
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1-2 weeks delivery time The Rule 37FA float-operated bilge pump switch provides automatic on/off control for bilge pumps and is designed to help prevent rapid on/off cycling. It is a compact unit with a built-in fuse holder, rated for a maximum current of 20 amps, and measures 105 mm long x 40 mm wide x 110 mm high (at maximum lift). Unit weight is 0.15 kg, and approximately 0.35 kg when packed. |
$ 99.59
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1-2 weeks delivery time The Rule Eco-Switch bilge pump control switch is a remote-mounted 12V automatic switch rated 0–20A that activates a bilge pump using compressed air through a tube connected to a plastic bell in the water. The bulkhead-mounted design keeps wiring and switch electronics above the bilge water level, uses a non-mercury design with no submerged electrical connections, and has no moving internal parts. Dimensions are 4.8 cm (H) x 15.2 cm (L) x 7.0 cm (W) with a shipping weight of 0.40 kg; order number 00304484, barcode 042237085184. |
$ 120.22
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1-2 weeks delivery time The Rule 39-24 Eco Switch is a remote-mounted 24V DC bilge pump control switch rated up to 10A that uses air pressure (compressed air in a tube and bell) to trigger pump operation. The non-submerged electronic system mounts above the bilge water level and activates when the bell fills with water; ignition protected and designed as a non-mercury alternative. Switch dimensions are 155 x 75 x 48 mm and bell dimensions are 100 x 60 x 30 mm, with pre-set switch levels of 57 mm ON and 25 mm OFF. |
$ 122.78
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1-2 weeks delivery time The Rule 401C livewell circulation pump is a 12V DC unit for through-hull installations with angled discharge, designed to keep bait and catch healthy with continuous water movement. It features a 19 mm (3/4 inch) ID hose outlet, 6A fuse requirement, 102 mm angled feed-through mounting, and 2 x 19 mm connections. Listed performance is 1925 LPH (500 US GPH) and it is supplied with a 3-year warranty. |
$ 85.38
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1-2 weeks delivery time The Rule 401FC livewell circulation pump is a 12V DC unit for seacock-mounted applications, designed to keep bait and catch alive with a rated flow of 1893 LPH (500 GPH). It uses a 19 mm (3/4 inch) NPT tapered thread outlet, specifies a 6A fuse, and lists 2 x 19 mm connections, with a 70 mm height and 70 mm diameter. Warranty: 3 years. |
$ 79.24
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1-2 weeks delivery time The Rule 401STC livewell pump is a 12V DC Tournament-Series 500 through-hull pump with straight discharge and a straight-threaded outlet. It is specified at 500 US GPH with a stated flow rate of 1925 LPH (also referenced as 1893 LPH), uses a 19 mm (3/4 inch) ID hose outlet, and includes a 121 mm straight thread mounting length; listed dimensions include 148 mm height and 70 mm diameter. |
$ 86.95
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1-2 weeks delivery time The Rule 403C livewell pump is a 12V DC circulation unit with a flow rate of 3028 LPH and an angled discharge design. It uses a 360-degree rotating base and 102 mm angled feed-through mounting, with dual ports (2 x 19 mm) for multiple connections using a single through-hull fitting. The pump includes anti-airlock protection, a push-button motor cartridge removal feature, and is specified with a 6A fuse; overall size is 149 mm height and 70 mm diameter. |
$ 100.01
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1-2 weeks delivery time The Rule 403FC livewell pump is a 12V DC unit designed for live bait and livewell circulation with a stated flow rate of 3028 LPH. It uses a 3/4-inch external thread mounting connection and provides 2 x 19 mm hose connections, with a vibration-free design for quiet operation. Product size is 70 mm height and 70 mm diameter. |
$ 81.71
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1-2 weeks delivery time The Rule 403STC livewell pump is a 12V unit with straight discharge for efficient water flow and quiet, reliable operation. It provides 800 GPH open flow (3028 L/H) and includes 2 x 19 mm connections, a 3/4-inch outlet, a 1/2-inch NPT external port, and a 4-inch straight thru-hull intake port. Electrical and installation details include 2.8A at 12V (4.0A at 13.6V), a 5A fuse, 148 mm height, 70 mm width, and 110 mm straight grommet mounting. |
$ 88.94
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1-2 weeks delivery time The Rule 405FC livewell circulation pump is a 12V DC unit from the FC Tournament series rated at 1100 GPH (4164 LPH) for steady livewell water flow. It uses a 3/4-inch external thread mounting and provides 2 x 19 mm connections, with 1-1/8-inch ports and a removable motor cartridge for cleaning and maintenance. Listed product size is 70 mm height x 70 mm diameter, and additional listed data includes a 6 amp fuse size, a straight 121 mm pickup tube, and a 28.58 mm (1-1/8 inch) discharge port. |
$ 89.74
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1-2 weeks delivery time The Rule 405STC livewell circulation pump is a 12-volt unit designed for fishing-boat livewell water movement with low noise and minimal vibration. It features a quick-release motor, a swivel base for adjustable exhaust direction, an extra-long hose tail for double hose clamps, and an additional outlet for hose-down. Specifications listed include 110 mm straight grommet mounting, 2 x 19 mm connections, 148 mm product height, and 70 mm product diameter, with flow stated as 4164 L/H and also described as 1100 GPH (3785 LPH). |
$ 106.36
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1-2 weeks delivery time The Rule-A-Matic Plus float switch is a slim, impact-resistant automatic bilge pump control switch with an integrated housing to help prevent dirt ingress and jamming. It supports up to 20 A and is rated for 12–24 volts, with switching points of pump ON at 51 mm (2 inches) water level and OFF at 19 mm (3/4 inch). Size is listed as 120 x 60 x 90 mm, with product weight 0.24 kg, and it includes a built-in manual test function. |
$ 80.91
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For more bilge pump switch options, explore our Rule Bilge Pump Switch.
For enhanced bilge pump automation, explore our Rule Float Switch, designed for reliable water level control and pump activation. These solutions are especially effective when paired with Bilge Pumps for Small Boats, ensuring efficient operation in compact marine systems.
For marine use, the Rule Automatic Bilge Pump offers reliable, hands-free operation to keep bilges dry and vessels safe. Trusted by professionals and boat owners worldwide, Rule pumps are known for their durability, efficiency, and smart activation features.