![Commodore 1100 GPH Automatic AMP Sensor Bilge Pump - 12V [CM-B31-1100B]](https://cdn.shopify.com/s/files/1/0855/3916/0358/files/106816XL.jpg?v=1736323013)
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Description
Commodore 1100 GPH Automatic AMP Sensor Bilge Pump - 12V [CM-B31-1100B]1100 GPH Automatic AMP Sensor Bilge Pump 12V The B31 Series Automatic Bilge Pump offers unparalleled efficiency and reliability for marine applications. Designed with a compact, automatic operation, this high performance pump eliminates the need for a separate float switch. With a flow rate of 1100 GPH and compatibility with both 12V and 24V systems, it is perfect for a wide range of vessels. Durable, marine grade materials and advanced features
1100 GPH Automatic AMP Sensor Bilge Pump - 12V
The B31-Series Automatic Bilge Pump offers unparalleled efficiency and reliability for marine applications. Designed with a compact, automatic operation, this high-performance pump eliminates the need for a separate float switch. With a flow rate of 1100 GPH and compatibility with both 12V and 24V systems, it is perfect for a wide range of vessels. Durable, marine-grade materials and advanced features ensure a long service life, while the quick-connect components make installation and maintenance a breeze. Whether you're upgrading or replacing a bilge pump, the B31-Series delivers powerful performance and unmatched convenience.
Features:
- Quick-Connect Wiring: Features threaded outlets and quick-connect wiring for seamless installation and maintenance. Replace the motor or base in seconds, not hours! Allows to user to switch the pump out in seconds between the quick disconnect base, quick disconnect wiring, and quick disconnect plumbing.
- Automatic Operation: No float switch is required. The pump checks for water every 2.5 minutes and activates only when needed, conserving energy and ensuring optimal performance.
- High Flow Capacity: Capable of pumping 1100 GPH, this pump is ideal for quickly removing bilge water, even in challenging marine conditions.
- Durable Marine-Grade Materials: Built with a stainless-steel motor shaft, moisture-tight seals, and marine-grade, silicon-blocked wiring, it is designed to withstand harsh marine environments.
- Submersible and Ignition Protected: Fully submersible and meets or exceeds ISO 8846 and ISO 8849 standards for safe operation in explosive atmospheres.
- Built-In Check Valve: Prevents water backflow, ensuring that your bilge remains dry and efficient between pump cycles.
- Dual Outlet Compatibility: Includes fittings for 3/4 inch and 1-1/8 inch hoses, offering flexible compatibility with existing plumbing.
- Warranty: Backed by a 4-year warranty, providing peace of mind and reliable performance.
Specifications:
- Weight: 1.03 lbs
- Flow Rate: 1100 GPH
- Volts: 12V
- Current: 4.0A
- Head: 12.0' (4.0m)
Included Components:
- Dual-size straight fitting (3/4 inch and 1-1/8 inch)
- Optional 90-degree angled fitting (1-1/8 inch)
- Quick-connect wiring for hassle-free setup
Specifications:
- Gallons Per Hour: 1100
- Operation: Automatic
- Outlet Size: 3/4" & 1-1/8"
- Volts: 12
- Box Dimensions: 3"H x 5"W x 5"L WT: 1.3 lbs
- UPC: 817683023017
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Perfect watch
Color: Black
This is the perfect watch for me. No negative issues at all. It's light, comfortable, easy to read, accurate, and tells me exactly what I want to know, even in the dark. I like that the seconds can be reset to zero with the push of a button. That makes it easy to set the time to the second. Battery replacement is simple. No pressing the back on with a watch press. I will agree the buttons are a bit stiff, but then I can't accidentally press 'em by flexing my wrist.
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Reviewed in the United States on March 7, 2024
★★★★★ 5
Happy with everything 👍🏽
Color: Black
Happy with everything 👍🏽
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Takes a Licking and Keeps on Ticking
Color: Green/Black
I love this watch despite the fact that it is really a toy. I love the look of the watch, I love how lite the weight of the watch is on my wrist, and it really does keep good time if you manage the solar charge properly. Other than looking cool on your wrist, this watch has absolutely no functions other than time keeping. The black plastic bezel is molded into the case and does not turn, so don't plan on using that. The watch has no light, the dial numbers are non-luminous and the hands are very limited in terms of luminosity. No buttons. All you can do is adjust the time and date by pulling out what used to be a winding stem in the good old days.
The small tag on the strap with Geographic coordinates shown on it indicate the location of the old Timex manufacturing facility (SW of Waterbury, CT).
I have a nice ledge at my bedroom window and it gets good western sun for a good part of the day regardless of the time of year. On this ledge you will find a half dozen solar powered watches (mostly Casio) properly aligned to maximize the charge they may receive each day. Note that the description for this Timex watch specifically states that a lightbulb won't charge this watch. You need direct sunlight for several hours if you want to get more than a 3-week charge into this watch.
So, I'll leave you with a couple of tips, my friends; 1.) If you are looking for a first watch to give your outdoorsy oriented Son or Daughter, then give them this one. Why? Because it is cool looking, fairly well built, and it actually works, 2.) After you receive your Timex watch, be sure to keep the display mount it is packaged with. It makes a great fixture to mount your watch on for charging and allows you to maximize the position of the solar cells on the dial so that you can optimize charging time.
Have Fun!
Jimmy
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Reviewed in the United States on February 28, 2026
★★★★★ 5
Excellent value, flawless performance for well over a year and no signs of quitting.
Color: Green/Black
Excellent value, had this for well over a year and it still keeps perfect time, still water resistant.
No worries about having to change batteries.
Owned a fancy expensive (battery) watch once and the dept. store repair intentionally sabotaged the watch in the hopes I would purchase another from them. Yeah, good luck with that, lost my business forever.
This is the 21st century, cell phones are the new time pieces, but solar is totally reliable and Timex makes it happen.
Holds a charge for many months, although I prop it in a bright window for a few days every few months or so just to make sure the cells are always fully charged, although it's probably unnecessary, just being over cautious. I haven't actually experienced this watch ever running out of power even after months of use. Damn impressive, as it should be.
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Reviewed in the United States on October 12, 2025
★★★★★ 4
Good value for solar watch
Color: Black/Orange
Nice watch! It is plastic like but it is solar. No indiglo button only a little luminous on the hands so you don't want to wear it in tje dark and expect to check the time. 45mm case is good size for my wrist and the band works good also, Not too long not too short. Overall a good watch with no problems
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Reviewed in the United States on May 6, 2026