






💦 Pump up your water game with quiet power and smart endurance!
The SEAFLO 55-Series Diaphragm Pump is a 12V DC, 5.5 GPM water pump designed for RV, marine, and off-grid water systems. Featuring a durable 5-chamber diaphragm, a heavy-duty smart pressure switch with over 200,000 cycles lifespan, and self-priming capability with dry-run protection, it delivers reliable, quiet, and efficient water flow. Built with corrosion-resistant materials and backed by a 4-year warranty, it ensures versatile, long-lasting performance in demanding environments.



































| Brand | SEAFLO |
| Color | Black |
| Material | Polypropylene (PP) |
| Power Source | 12V DC |
| Product Dimensions | 8.5"L x 5.75"W x 5.16"H |
| Style | 5.5 GPM - 60 PSI |
M**N
So far appears to be a great value fresh pump.
Only 2 months in, so durability not evaluated yet. Overall whilst I haven't experienced any measure of longevity yet, the "fit, form and function" of this fresh pump seems to be quite the value for basic needs such as mine. Surely not the same total experience as a higher flow pump with multiple diaphragms and increased noise abatement, but for those who don't need such a premium experience (with quite dear costs) this pump is quite nice and presents much better value IMO. Bottom line: - Noise level: Not measured, but quite acceptable to me. With it mounted directly under the berth I *do* hear it throughout the boat, however at absolutely minimal volumes that I don't foresee waking anyone except the lightest sleeper. If the tank goes empty and it starts pushing air it will hammer a bit. Some day I'll break out the db meter and measure this. - On demand sensing works great - when I turn on the faucet, water is there and continues to be there. This is perhaps the most important aspect to creating an "at home" experience - no footswitches or pumps, not buttons, just a regular ole faucet. - No hammering or surging even with just a single diaphragm until water gets low - if it starts drawing air then it hammers. To be frank I like this as I don't have a gauge in my fresh tank, so this acts as my alert that water if very low. - While I have only two faucets, the flow is quite sufficient. Wash dishes, even rinse down cabin floor or countertop without any problem. - Same install as any other pump, quite easy particularly when combined with pex. I have to remind myself to take some photos / videos for everyone. I used this to replace a manual freshwater plumbing system in my sailboat and honestly I kind of hate the maritime industry, so when I saw an item that was more appropriately priced for it's design and manufacturing costs, I decided to give it a try. I'm very glad I did, this little guy so far is proving itself out very nicely. I've already recommended it to several rag haulers who are still pumping faucets.
B**9
BEST BUY EVER
1 Car Battery 1 Regular size hose 5/8 or 3/4 2 Hose iron Clumps or fasteners or whatever It works great, easy set up and it silent like it like a mini fan. The size fits anywhere, it looks pretty good and doesn't take up plenty of space. It last plenty long and it is durable I dropped it before I even used it for the first time. I thought that it would be the end of the world if it did not work, but it worked fine. The pressure is good i would get a few gallons in less than minutes. YES I WOULD BUY IT AGAIN.
R**S
Amazingly quiet and effective pump for our RV
We have an older (1991) motorhome that still had its original water pump. Since we bought the RV when it was already 27 years old, we didn't think much about how noisy the old pump was when it ran and how much it vibrated all the pipes. It got so bad that it actually cracked a PEX connector in my plumbing from all the vibration. Fortunately we caught it before too much of a flood. That was the incentive to look for a better pump in hopes of getting one that would be quieter and not vibrate the whole RV when you flushed the toilet. After doing quite a bit of research and looking at reviews we chose the SeaFlo pump. It's a good name brand and had a reputation of being relatively quiet. We couldn't be happier with it. We installed it with a SeaFlo Accumulator tank (0.75 l) and after hooking it up and wiring it up I went ahead and turned it on. At first I thought it wasn't working because I didn't hear ANYTHING! However the water started coming out the faucet and when I got closer to it or put my hand on the pump it was clear it was in fact working, but was living up to its QUIET reputation. I highly recommend this pump. You could spend less on a cheap knockoff import unit, but seriously is it really worth saving a few dollars on something that probably won't last and may be rather noisy when you can get the best with SeaFlo. And no, I'm not paid by SeaFlo to do this review, I'm just incredibly impressed with the quality and want to share that.
A**M
Easy repair
This RV water pump runs better than the old one but it is still so loud when it cycles. The water flow & pressure are definitely improved. We had no problems with installation. Very easy.
C**S
Water flow
Easy to install and worked great
F**L
Delivers More Lift Than 9-Feet
I have this pump mounted to a wood frame to pump water from my home's well to irrigate my potatoes and black raspberries. When I can babysit it, I connect it to a 12-volt automotive battery. This battery is recharged by a 100W Renogy solar panel, controlled by a small charge controller. The specs of this pump said the maximum head lift is 9-feet, so I cut the siphon (inlet) tubing 9-feet long. The water level in my well is about 9-feet below ground, so it was barely long enough to reach. I added another 5-feet of tube and found that it pumps water and mostly maintains a prime, although sometimes it'll lose the prime and stop pumping. So far, I'm pleased with its performance.
A**W
great for an off road rig
this is a really great pump with really great suction and output pressure (for 1 faucet). Installed 2 in my 4x4 rock crawler, 1 to run a hose, then a second one to refill the reservoir via suction. For the price it's unbeatable, but it is quite loud when running so be aware if that's something you care about
S**T
EXCELLENT water pump - and great seller.
I'll update this review when I actually RECEIVE the product, but currently I'm going on 6 weeks for actual delivery of this. I ordered it May 1 and as of June 9, still no pump. The delivery time period shows sometime between May 28 and June 14 (no PRIME shipping was available when I purchased it - but I see it is NOW...), but every other product I've ever ordered from Amazon with such a broad shipping timeframe still arrives within 2 weeks... With several other reviews on here saying they got theirs quickly, I'm getting concerned my order was lost and I may be out $28... I hope not, but I can only assume they're shipping this from China on a row boat, it encountered a monster storm, sank, had to be retrieved by a submarine, was placed on another row boat, Nigerian pirates commandeered the second row boat and are holding my pump for ransom... You get the idea. I trust it'll be a good product when it does arrive, but I hope the 2014 camping season isn't completely over by the time it does. I need this for my popup trailer now! Two separate orders for LED lightbulbs placed on the same day and given the same broad shipping time period were received several weeks ago. This is getting a bit ridiculous. I'll update this with a review of the product itself when it does arrive. Shipping sucks though. Pay for 2-day shipping. I wish I knew that when I bought it. I may not have time to install this before our second trip. I'm already going to miss out on it for our first trip this year. UPDATE: I was supposed to receive the pump by June 13, but that date came and went. I had little-to-no expectation of receiving a refund for some reason, but contacted the seller and explained the problem. They answered promptly and refunded my money within a couple of days. I went ahead and re-ordered (this time with PRIME shipping) and received the pump yesterday on-time. I will install it in my popup trailer in a couple of days and update the review with the pumps functionality at that time. Great response by the seller though! UPDATE PART 2: I finally got to the install today and found like other buyers that it came with no instructions whatsoever. Power wires are pretty self-explanatory (red is +, black is -), but the inlet/outlet ports weren't even labeled. I connected 3/8" tubing to each side and after a quick test on my popup trailer battery found that left is inlet, right is outlet. Install went smooth and easy. I t'd into the water line for the hand-pump side of my faucet (Leisure Components faucet purchased on Amazon) and plugged into the inlet of the pump. From the outlet I plugged the hose into a t'd connection I installed in the city water hose. Wired it up and tapped into the power wire for my thermostat, grounded to the frame, and I was good to go. I installed a toggle on/off switch so that I can bypass the water pump entirely if need-be for some reason. The pump is a little bit noisy by itself, but once the dinette cushions are back on and particularly if there are some additional items in the space under the dinette seat, it's actually very quiet and muffled. The reviewers who claim it's loud enough to wake up the whole campground are exaggerating a TON. The mounting feet are thick rubber to help dampen the noise and not spread vibrations through the trailer frame, but I cut up an old mouse pad and used that as a buffer between the pump and trailer frame as well to help with that even more. All things said, I'm extremely pleased with the purchase. I can still pump water with the faucet as normal, can plug into city water if available, and can use the water pump itself for those times my family doesn't want to have to pump water from the facet when we're boondock camping. The $30 price tag and free shipping simply can't be beat either. AWESOME product!
Trustpilot
2 weeks ago
2 weeks ago