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Rule Standard Bilge Pump with Float Switch
Item: #1009383 | Part Number: Not Selected$58.99 - $88.99
Description
The Rule Standard Bilge Pump with Float Switch delivers reliable, efficient water removal for small boats and ski vessels. Designed for dependable operation, it features a compact, lightweight build, low amp draw, and a built-in thermal cut-off. Included float switch and check valve add convenience and peace of mind.
Rule Standard Bilge Pump with Float Switch Item # 1009383
Description
Keeping your bilge clear of nuisance water is the number one objective of Rule Standard Bilge Pumps. Simple as that. Rigorous engineering and testing ensure that Rule keeps delivering pumps that can efficiently handle the highest flow even in the most challenging applications.
Features:
- Light, compact pump for ski-boats and small vessels
- Tough plastic body with integral strainer
- Quick release inlet strainer allows rapid cleaning
- Low amp draw conserves batteries
- Built-in thermal cut-off
- Check valve included for back flow prevention
- Vented body to prevent air locking
- Threaded port for easier installation and maintenance
- Base not interchangeable with old range but can be fitted to existing screw holes
- Includes a Rule 35A float switch as well
Specifications:
- Voltage: 12V
- Fuse size: 2.5A
- Current draw:
- 360 GPH (Model 24DA-35A): 2.1A
- 500 GPH (Model 25DA-35A): 1.6A
- Connections: 3/4" (19 mm) bore hose
- Dimensions: 99 mm high, 64 x 74 mm
- Weight: .90 lbs
Part Numbers for Rule Standard Bilge Pump with Float Switch
Videos
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Reviews
Rated 5 out of
5
by
David L. from
Great product.
The larger Rule pumps seem to work longer than the smaller ones. I replaced a 10 yr old pump with this one. Easy swap using same strainer mounting.
Date published: 2026-04-30
Rated 4 out of
5
by
Andy C Bermuda from
Rule 1500
Great pump from Defender. Standard pump for most boats.
Date published: 2025-11-24
Rated 5 out of
5
by
Dave from
Rule Pump
This pump is for a newer style shower box, I didn't realize that and had to return it, but Defender is easy to deal with when something has to be returned. Great service, thanks guys!!!
Date published: 2025-07-28
Rated 5 out of
5
by
Dave from
Easy to Replace Bilge Pump
This purchase was to replace the same brand and size existing bilge pump. It is nice that the wire colors have been kept the same and the pump base is the same. So, the new pump locks into the existing base and the same size hose slides right on. The previous bilge pump came with the boat, so I don't know how long it lasted.
Date published: 2025-05-26
Rated 5 out of
5
by
Captain Heinz from
Great Product
We had a flowles installation and so far a superb operation. I can highly recommend this pump.
Date published: 2023-12-05
Questions
Data sheet specification only show for 1500 - what are specs for 2000 or 4000?
The attached data sheet should answer most of your questions.
Date published: 2026-02-21
what is the OD of the pump outlet?
Clicking on the specifications link in the description reveals the various output diameters based on pump size.
https://defender.com/assets/pdf/rule/rule-quick-reference-flyer.pdf
Date published: 2024-07-23
I double dog dare you to locate a spec sheet for any rule pump other than the 1500. Searching on a 2000, 3700 or 4000 spec sheet takes you to the 1500. This will not help to identify discharge hose size.
Hello, Please see the attached image with the spec sheet.
Date published: 2025-10-14
Outlet diameter
1-1/8"
Date published: 2025-05-18
what size wire should be used to connect the Rule 2000 pump?
This depends on how much voltage drop you are willing to tolerate in the circuit. I would recommend a 3% drop for the main wire because there will be additional losses in the circuit as it passes through the float switch (skinny wire) and the ON/OFF/AUTO switch. With this in mind and assuming a 12 volt system, you want your resistance for the wire to be no more than 0.36V/8.4 amps= 0.043 Ohms. Divide this value by the resistance of the wire (Ohms/ft) to get the maximum length of the circuit for any size of wire. For example, the maximum length of 14 gauge wire would be 0.043 Ohms/.0025 Ohms per ft= 17.2’. I ended up using 10 gauge wire on my boat due to the 40’ circuit length (20’ from the panel to the float switch + 20’ back) and made the connections to the float switch via a terminal block with heat shrink ring terminals to prevent corrosion in the wires. This method worked well and made it easier to change out float switches when necessary. I hope this helps. PS, if you still have issues with voltage drop on the Rule 2000, you might consider a Rule 1500 since it only draws 4.8 amps (according to the West Marine info) compared to the 8.4 amps of a Rule 2000 and voltage drop is directly related to the amperage.
Date published: 2026-06-23