SEAFLO 21-Series Water Pressure Diaphragm Pump - 12V DC, 1.2 GPM, 35 PSI with Adjustable Pressure Switch, Self-Priming, Quiet Operation for RV, Boat, and Off-Grid Applications

It works well for my purposes. It gives me the flow rate that I needed and runs on 12 volts. I use it in my sprayer and I like the adjustable presure switch that turns the pump off when I stop spraying.

good reliable product . company has many sizes to fit your needs.

Good replacement for my old camper, nice water pressure, and fast, it’s a little noisy but so what!

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!

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

Works good, easy to install, still working 2 seasons.

I installed this in my 1976 truck camper, and it works well. Be sure to follow the installation instructions and remember it is a weak pump. It won't work/pump unless you have the line open (turn the faucet on) as it can't overcome the air pressure by its little self. The price was right, install was easy, and it is a bit noisy, but not worse than anything I would expect for the size and money. I have it hooked up to a single faucet with a filter on the line, and a little presurized holding tank to help keep pressure up and the pump not working as hard. I'd buy it again.

Look closely at the pump's barbed hose connections. They have 4 blatant design flaws. 1) The barbs are very "shallow" (not enough angle to them). 2) They have smoothly rounded edges that don't "bite" into the inside of the hose. 3) The overall stub length is very short, resulting in limited area for the hose clamp to do its job and 4) the plastic material itself is textured and "slippery" - lacking the sticky friction you get from typical smooth nylon barbs. I tried multiple different types of 3/8 hose along with multiple different styles of hose clamps. In every case, I was able to easily pull the hose off, even with a tightened clamp. So the pump connections of course leaked like crazy. The rest of my plumbing system is all made with barbed connections that have much more "tooth" and do not leak at all. Aside from that, the pump seemed nice and worked fine. Unfortunately the obvious barb design flaw made it unusable for me. I'm really surprised nobody else seems to complain about this issue.

Produto muito bom

This pump is noisy. It's not the first pump I've used/installed and this is no better than 20 year old pumps I've replaced. Considering the technology available it's sad that these pumps still shake too much when primed. They rattle everything around them. It works well but the low noise advertising isn't accurate at all. Try something else if you need a quiet pump. I returned this one.

If your pump arrives broken, return it, has a 4 YEAR warranty. Don't throw it out and complain here 🤣. Mount your pump properly before complaining that YOU broke it. Yes, it does fit the tubing IT SAYS IT FITS. And its NOT water proof? Okay, Do your research before buying something that doesn't have a feature you want. Did you install a debris filter? Are you letting it run until it's primed or just the post pump water comes out and you shut it off quick then rinse and repeat until you run your pump with air at least half the time? Self priming doesn't make it a glorified air pump. It means on the off chance there's SOME air youre not instantly screwed. You still need AS MUCH PRIME as possible. Pumps can be complicated to take care of so please do your research. A lot of the complaints in the reviews could be claimed warranties, reading the description, learning about pumps, asking questions here etc. It does what I want, when I want, as advertised.

We installed this in a camper last summer and it performs quite well. It had a 2 year warranty then, and now sells with a 4 year warranty . I don't know the terms of that warranty. I can recommend it, for the price. However, it is anything but quiet. It sounds like a noisy bearing but has had, literally, less than 5 hours of use. One nice feature is that it will auto-on and off until and unless, it is drawing on little water left in the tank. The pressure is good, as long as there are no air leaks in the tubes. I would like to see markings to indicate the input and output.

i use a screen filter at the input with 1 meter of flex tube and 6 meters at the output for to remove water after too much rain.. i plug the pump on a 12v/18amp agm battery.. it's not a big flow (input/output same height), but do the job slowly and don't need a big power.. a bit noisy but it's normal for diaphragm pumps..