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Outdoor Master Dolphin 2 Electric Pump – Test and Review

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Outdoor Master Dolphin 2 review

The worst part about using an inflatable paddle board is inflating it. Cheap paddle boards come with hand pumps that barely work. Pumping up a board with a single action hand pump makes you exhausted before you even start paddling. An electric pump is the solution and one of the best SUP accessories you can buy. The Outdoor Master Dolphin 2 electric SUP pump is a low cost, small, pump that can reliably inflate your board up to 20 psi. Keep reading to get the complete story on the Outdoor Master Dolphin 2 pump.

Best Cheap Electric SUP Pump

OutdoorMaster 20PSI High Pressure SUP Air Pump The Dolphin 2

Outdoor Master Dolphin 2 Product Image
  • Max Pressure – 20 PSI
  • Inflation Speed Test – 9min 57sec
  • Inflate Multiple Boards – No
  • Size – 10.25″ X 6.25″ X 5″
  • Weight – 2 lbs
  • Battery – No

Get 10-20% OFF with code ERO2022 at OUTDOOR MASTER

Overall Score


Multiple Boards8.5

Ease of Use9.0

Cord Storage7.0


What we liked:

  • Very low cost
  • Can inflate boards up to 20 psi
  • Can inflate more than 1 board in a row
  • Reliable and strong pump
  • Compact and easy to fit inside a SUP carrying bag
  • Not as loud as other pumps in high pressure mode with a more tolerable lower pitched sound

What we didn’t like:

  • Can’t be used to deflate boards
  • Takes a few minutes longer than bigger 2 stage pumps

Features of the Outdoor Master Dolphin 2 Pump

We really like the electric SUP pumps by Outdoor Master. We have been using the Shark 2 and Whale for a while now and love them both. I rarely ever hand pump a paddle board since getting them. They are both pricey and not that small. The Outdoor Master Dolphin 2 is a cheaper alternative that is small and lightweight. It is only 2 lbs and small enough to easily fit inside any inflatable paddle board bag. It can still inflate boards up to 20 psi.

What does the Dolphin 2 give up? It does not have an internal cooling fan but it can still pump a few boards in a row. It only has a single stage pump so it takes a few minutes longer to inflate a board.

Outdoor Master released a new version of the Dolphin pump called the Dolphin 2 in 2023. What has changed for the Dolphin 2 from the Dolphin?

  • The Dolphin 2 can run for up to 45 continuously instead of 15 minutes. You can pump more boards
  • It is a little faster than the original Dolphin. This is noticable when inflating large boards up to 20 psi
  • It’s quieter. It has a lower pitched sound than before.
  • It has a screw on hose instead of twist fitting
  • It has a plug in power cord instead of fixed power cord
OM Dolphin 2 what is included


The Dolphin costs $65.99 on Outdoor Master’s website. With our discount code ERO2022 you can drop the price to $59.40. The Dolphin is also available on Amazon.

Size and weight

I can easily hold the Dolphin 2 SUP electric pump in the palm of my hand. It is 10.25 X 6.25 X 5 Inches. It weighs about 2 lbs. The Dolphin has a shorter air hose than the Shark and Whale Pumps to go along with the smaller size. The Dolphin easily fits into the bag along with your paddleboard and all the accessories. It doesn’t add too much weight either. It has a convenient carry handle attached to the top as well.

Shark Dolphin and whale pumps
Left to right – Shark 2, Dolphin and Whale

12 volt power

The pump has a 12 volt plug for use with the 12 volt outlet in your car. The power cable is about 10 feet long so you can get the pump close to your board. The plug has a built in 10 amp fuse. You can replace it by unscrewing the metal end of the 12 volt plug.

12 volt outlet

Stand Up Paddle board compatibility

The Dolphin will work with almost any paddleboard or other water sports inflatables out there. It has the following valve adapters. H3/HR, C7, Boston, Pinch and 805. This will cover almost every inflatable paddleboard and kayak out there. Most inflatable paddleboards use H3 or Halkey Roberts plugs which this pump has. It will work with any SereneLife, Funwater, DAMA, Coolwave, Outdoor Master/Chasing Blue, iRocker, Red Paddle Co, Starboard, and many others.

Dolphin air valves
OM Dolphin 2 Adapters

Max pressure

This pump can inflate up to 20 psi. Most paddleboards inflate to around 15psi so it gives you some extra power. It won’t struggle to get you to 15psi.

Inflate only

The Outdoor Maser Dolphin can only inflate paddle boards. It does not have a deflate port that the Shark and Whale have.

Several Boards at a time

The manual included with the pump states that you can run the pump up to 45 minutes before it needs a 10 minute break. We have inflated 3 boards in a row with our Dolphin and it didn’t overheat or slow down. I’m not sure why you would ever want to inflate more than 3 boards in a row. The Dolphin 2 isn’t the fastest pump in the world and it I would get more than 1 of them and a battery power supply before waiting for it to inflate 4 boards.

Digital Display and Controls

The Dolphin 2 has a digital display for real time pressure monitoring in either PSI or Bar. It has 4 button controls for easy operation. It has 2 buttons for setting pressure. 1 button for switching between PSI and Bar. 1 button for power/starting and stopping the pump. It’s very intuitive and easy to use. Just set the desired pressure and hit the power button. It will automatically stop when you reach the target pressure.

Dolphin 2 display

Using the pump

We have spent a lot of time with Outdoor Master electric paddle board pumps. They are all reliable and easy to use. The Dolphin is the smallest, lightest, and cheapest of the bunch. It uses a similar high pressure pump to inflate the boards. It does not have a high volume first stage so it takes a few minutes longer to inflate than the other boards.

Fast inflation time

We hooked up the pump to a 10’6″ by 33″ all around paddle board. This is a typical $250-$300 paddleboard similar to those sold by Serenelife, DAMA, and Funwater. We inflated it to 14 psi. It took 9 minutes and 27 seconds to inflate. This is about 30 sseconds faster than our original Dolphin. For comparison, it takes the bigger Outdoor Master Shark 2 8 minutes and 40 seconds to inflate the same board to 14 psi.

It takes me 7 minutes and 53 seconds to inflate this board by hand using the supplied double action pump.

Inflating boards to 20 psi

We have a 12’6″ x 30″ touring board that can be inflated to 20 psi. We hooked up the Dolphin to it to try out the 20 psi max pressure claim. The Dolphin had no trouble pumping it up to it’s 20 psi max pressure. It took 11 minutes and 23 seconds to pump this board up to 15 psi (52 seconds faster than original Dolphin) and 14 minutes and 36 seconds (1 minute and 54 seconds faster than orignal Dolphin) to get it to 20 psi.

The Dolphin needs 1-3 minutes longer than a 2 stage pump such as the Outdoor Master Shark 2 to pump up most boards. It takes 2 to 6 minutes longer than hand pumping depending on the size of the board and target pressure. It saves a lot of work and you’re not exhausted before you even start paddling.

Below is a table showing inflation times for the pumps we have tested.

Electric Pump 10’6 x 32.5″ x 6″ All Around Board 12’6″ x 30″ x 6″ Touring Board 12’6″ x 30″ x 6″ Touring Board
14 psi 15 psi 20 psi
Outdoor Master Shark 2 8 min 40 sec 9 min 35 sec 13 min 1 sec
Outdoor Master Whale 9 min 22 sec 9 min 58 sec
Outdoor Master Cachalot 7 min 51 sec 9 min 23 sec 13 min 49 sec
Outdoor Master Dolphin 2 9 min 27 sec 11 min 23 sec 14 min 36 sec
Outdoor Master Cachalot 2 7 min 13 sec 8 min 53 sec 12 min 20 sec
Outdoor Master Cachalot 2S 7 min 5 sec 8 min 40 sec 12 min 13 sec
iRocker Electric Pump 7 min 5 sec 8 min 32 sec 11 min 50 sec
NIXY Ventus 8 min 28 sec 11 min 15 sec 14 min 34 sec
Bluefin E-Swift 7 min 18 sec 9 min 6 sec 12 min 25 sec
Serenelife SLPUMP50 7 min 37 sec 9 min 7 sec
Serenlife SLPUMP30 8 min 12 sec 9 min 27 sec 14 min 20 sec
Serenlife SLPUMP10 11 min 32 sec 13 min 49 sec
Airbank Puffer Pro 7 min 27 sec 9 min 8 sec 12 min 48 sec
Airbank Whale Shark Pro 7 min 49 sec 9 min 41 sec 13 min 13 sec
Valwix Electric Pump 7 min 10 sec 8 min 48 sec 12 min 16 sec

How many boards can it pump in a row?

The Dolphin pump is compact and small and does not have an external cooling fan. It can pump continuously for up to 45 minutes before needing a 10 minute cool down. This will inflate 4 to 5 boards depending on the board. It does have an overheat protection circuit in it to prevent damage if you do overheat it trying to do too much.


The Dolphin 2 only operates in high pressure air compressor mode which is the noisy mode of any electric paddleboard pump. They did make it quieter than the original Dolphin. It has a noticeably lower pitched sound to it which makes it more tolerable. It’s still loud but not quite as loud.

OutdoorMaster 20PSI High Pressure SUP Air Pump The Dolphin 2

Outdoor Master Dolphin 2 Product Image

Get 10-20% OFF with code ERO2022 at OUTDOOR MASTER

OutdoorMaster Discount Code

Use the Coupon Code ERO2022 for 10-20% off at OutdoorMaster.com

The Verdict

The Outdoor Master Dolphin 2 is a great small cheap SUP pump. It is the perfect companion to go with any SUP paddle board. It’s small and lightweight making it easier to store in a paddleboard bag. It doesn’t cost much so you won’t feel like you are spending as much on a pump as you did your board. It gives up a few things compared to more expensive pumps. It keeps the reliability and ability to inflate to 20 PSI which are the most important features. If you hate hand pumping your board and want a cheap electric pump, give the Dolphin a try.

Doug Ryan Portrait Skiing 200x200

Ryan Craig
Co-Founder & Chief Editor

I am a total gear nerd and love learning how things work and thinking about how they could be improved. Nothing excites me more than trying out new gear. I’d rather spend 3 hours taking my bike apart and learning how to change something than go to a bike shop. These days, I reside in Michigan by the Great Lakes and go skiing, biking, and boating as much as possible. Visit our About Us page and learn more.


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