SUP Fins for River iSUP - 6" Deep

25 review(s)
Retail: $24.99 Price: $19.95
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iSUP River Fin
  • iSUP River Fin
  • Inflatable SUP River Fin
  • iSUP River Fin Tail View
  • iSUP River Fin side view
  • iSUP River Fin Box
  • Attachable iSUP River Fin
  • Inflatable SUP River Fin side view

SUP Fins for River iSUP - 6" Deep

25 review(s)

SUP Fins for River

Tower SUP fins 6" center fin for Tower inflatable paddle boards. These SUP fins are meant for paddle boarders who paddle in shallow water such as a river or estuary. At a few inches shorter than our standard paddle board fins, these SUP fins will allow your to traverse shallow waters without scraping the bottom. 

These SUP River fins do not come included with every inflatable paddle board purchase and must be purchased separately. 

Frequently Bought with


SUP Fins - River Fins

6" center fin for the Tower Adventure inflatable stand up paddle board. The shorter sup fin is great for use in rivers and shallow water. As some of our customers use their inflatable paddle boards in rivers and shallow ponds/lakes it is useful to have a shorter fin for these conditions. These sup river fins can fit in the center fin of any of our inflatable stand up paddle boards. Our standard paddle board fin comes included in every Tower inflatable SUP package that your purchase. This type of sup fin is a few inches longer so it can get more easily damaged in shallower water. However, if you are paddleboarding in shallow water we highly recommend this SUP river fin. It will allow you to navigate more easily without hitting the shallow rocks or sand that could potentially damage your SUP fin. 

SUP Fins - Easy to use

These sup fins are extremely easy to use. You simply place the fin into its socket till so you can see through the hole. Then take the pin and wedge it through the hole securing the sup fin in place. To take the sup fin out, just pull the pin out and then take the sup fin out of the socket. By having a replaceable sup fin, our inflatable paddle boards are extremely easy to use and can be transported and stored anywhere. Unlike our classic stand up paddle boards, the iSUPs boards can be rolled up and stored nearly anywhere. Because of this virtually anyone can use them. You no longer have to have a large storage space or a big truck to haul the board to and from the water. The SUP fins even come off easier making the inflatable sup the most portable and versatile paddle board available. 

Do you need the SUP fin to paddle board?

Having a river or standard sup fin in the paddle board is vital to the performance of the board. The sup fin is necessary because it helps you paddle in a straight direction. Although you can use the board without a sup center fin you will struggle to move in a straight direction. With every paddle on either side the board will move significantly in the direction of the paddle making it hard to go straight. 

25 review(s)

Overall Customer Rating of 25 Reviews:

River Fin

Review by: from Oklahoma on 12/4/2020
I actually have not used my River Fin just yet, but I know it will be just fine. I do want to take this opportunity to say how much I LOVE my Adventure ll SUP. I’ve been able to go out on my Board several times since receiving it in September and the Board is just outstanding! I’m moving to Virginia where there are many rivers for me to explore so my new River Fin will come in very handy. The Tower Products are excellent!! I’m saving up for a second Board...thank you

Just what I needed

Review by: from B.G on 8/22/2020
After mine was lost, I couldn't find a replacement fin for my inflatable paddle board because the company stopped making them. Somewhere in the depths of the internet I found a recommendation to this fin. With a little modification it worked perfectly. Tower paddle boards shipped it almost immediately and I got it right in time to bring it on a camping trip.

River ready

Review by: from 30306 on 9/9/2019
Went down the class 1 rapids 17 miles on the Chattahoochee River on my iSUP with this as the center rear fin, the board still tracked well (90%) of the long fin and kept me from face planting.

Enhanced replacement

Review by: from NY on 8/11/2019
Shipped on time exact fit for solstice baja inflation paddleboard with easy lock in pins.

Efficent and Friendly

Review by: from Montana on 2/8/2019
I had a difficult time locating a replacement fin for my daughters paddle board. The manufacturer was out of stock but gave us contact information for Tower Paddle Boards who had the fin available. I emailed them directly and they had the fin in the mail the same day! Very happy with the product and the customer service!

Worked Perfectly

Review by: from on 9/16/2018
I had lost the fin to an older model iSUP and Tower Paddle Boards was the only place that had it. Luckily this fin fit perfectly, and it seems to be made of a lot better material than the original. In addition, this fin has a leash that can attach to the board so I can't lose it in the future.

New River Fin for Inflatable SUP

Review by: from on 9/13/2017
I can't get enough of this board. The new fin is just what I needed. Next year I'm buying a fishing license! This fin allows you to get in close to shore on lakes and tracks beautifully. I'm so pleased with my board. I pack it up in a suitcase and take it with me on vacation, Hawaii here I come. Saves me at least $20 a day in rental for 1 hour! THANKS TOWER and my little dog likes it to, if I don't knock her with the paddle, LOL

Adds versatility to the board

Review by: from on 8/2/2017
Bought this fin to use on my IRace board on a local river that gets shallow in places. This shorter fin did the trick and worked great allowing me to get into and through places the standard fin would hit bottom. It was easy to install which was nice. Good way to give you some additional options on using your ISUP and worth the money.

worked great

Review by: from on 8/1/2017
Once I dug to find the right part, I ordered it and it came quickly. w00t!

Skinny Water Fin

Review by: from on 7/14/2017
Picked up a couple for our iSUPs for low tide use. Perfect for inshore paddling on the Gulf of Mexico. Can't wait to use them on a river trip.

Awesome Customer Service!

Review by: from on 5/22/2017
The products and customer service is always exceptional when dealing with Tower!

Works very well

Review by: from on 5/13/2017
Works exactly like I had hoped it would. Extremely easy install. Makes a big differnce vs not having one.

Good Fin

Review by: from on 3/23/2017
Good fin for river touring

Customer service ftw

Review by: from on 10/3/2016
Tower customer service is the real champion and the reason I keep going back to them for more SUP stuff.

These fins are a tad long, in my opinion, for whitewater use. They scrape in the occasional shallow spot. They're pretty tough to break, but it is possible if you get snagged in really rough water.

I don't love the bolt it uses to attach to the board. I have trouble finding a screwdriver that is that large.

Great service

Review by: from on 8/24/2016
Fast service. Was able to get back on the board in a week! Good follow up, too.

Great service

Review by: from Sedro Woolley, WA on 8/24/2016
Fast service. Was able to get back on the board in a week! Good follow up, too.

River fin

Review by: from on 8/21/2016
When flat water is not an option!

Excellent for the River

Review by: from on 8/11/2016
Gave me the ability to go in a bit more shallow waters on the river while maintaining control. A "must have" item for paddling rivers.


Review by: from on 8/10/2016
seems good. Arrived as advertised. I have not used it yet

River fins

Review by: from on 7/7/2016
The Explorer 9' 10" model works fine without a center fin in shallow rivers, but the fin sure helps for maneuverability in deeper rivers.