





💦 Pump up your off-grid lifestyle with quiet, customizable water power!
The SEAFLO 21 Series Water Pressure Diaphragm Pump delivers reliable 12V DC water flow at 1.2 GPM and 35 PSI, featuring an adjustable pressure switch, self-priming capability up to 4 feet, and a durable Santoprene diaphragm. Designed for RVs, boats, and off-grid setups, it operates quietly with vibration-absorbing mounts and comes backed by a 4-year limited warranty for lasting performance.



































| Brand | Pactrade Marine |
| Color | Black |
| Item Weight | 1.5 Pounds |
| Material | Polypropylene (PP) |
| Power Source | Battery Powered |
| Style | Diaphragm |
A**R
Worked for my job
I used this for a camping shower setup. It will pump 1 gallon per minute which was more than I wanted. Built a flow reducer from a piece of rubber and slowed the flow to 1 1/2 gallons per minute. Installed the old style sink accessory spray nozzle in my line to have control of the water which worked perfect. At 35 psi the pump shuts off when you release the handle on the nozzle.
C**L
Warranty
Purchased 2 of these pumps in July and Aug 2019. They are used off the grid cabin for about a month during the summer. The pumps are disconnected and every fall and stored in our home. One pump now turns on when you turn on the water. When the water is turned off the flow of water stops but the pumps makes a banging noise and won't turn off. I emailed Seaflo and was told it was a broken pressure switch with instructions to require the pump! What kind of 4 year warranty is that ? I emailed Seaflo and told them no I wasn't rewiring the pump. Haven't got any response. I called Seaflo and voicemail is full. Called Amazon and got sorry contact the manufacturer. Contacted the sellwe and cannot get anyone to answer the phone. The warranty is worthless.
P**S
works as expected
Well we just came back from a camping trip and the water pumped worked very well. .and it was very easy to install into the camper we like it a lot it works very well.
M**O
Updating this review. Pump failed on first use but company sent a new one at no charge.
Well I'm giving this pump a one. Because there's no zero available. I installed it in my boat as a scavenger pump and it failed the first time I used it. Updating this review to a 3. Company stands behind their product and sent me a new pump.
A**R
Good but noisey
This pump works as advertised, except that it is very noisey.
O**B
Second time replacing it.
Poor quality. I thought the first one was a dud but I barely got a year of service out of this one before it wouldn’t hold pressure to the system and had to run every 5 minutes to build pressure. What was more maddening it was intermittent so very difficult to trace the issue. The check valve went bad or there it a crack somewhere I can’t see that is leaking to cause the pressure to decline when not in use. Nothing like listening to a water pump cycle all night long. I gave it two starts because when it ran I got great pressure and it was quiet.
R**O
It works
Makes easy H20 transfer
B**C
Used
There was already water in the pump when it arrived. I used it for the first time yesterday 7/15/2023 and it failed after about 5 mins. Took it apart and looked for stuff that might have caused it to fail, cleaned it and it still didn't work. Motor runs but no suction. POS.
Trustpilot
3 days ago
4 days ago