Buy any 2 aqua bags and get 10% off.

  • FX Tank 20
  • FX Tank 20
  • FX Tank 20
  • FX Tank 20
  • FX Tank 20
  • FX Tank 20
  • FX Tank 20
  • FX Tank 20
Get started with instability training 

FX Tank 20

Regular price
Up to 20 kg adjustable water weight
Our largest aqua bag in size and capacity
Two sets of neoprene handles for more grip options
Color of the handle: 
A flat worldwide delivery fee of US$20 applies.

The Fluid X Tank 20 delivers dynamic, feedback-driven training. Its shifting water engages core stabilizers, improves balance, and reduces injury risk. Adjust the weight for any fitness level, from beginner to athlete, and experience real-time feedback that sharpens your technique. Functional movement patterns - squat, lunge, push, pull, hinge, and core/rotation - made adaptable and effective.


Product Details

● Up to 20 kg adjustable water weight
● Dimensions: 76cm x 20cm
● Comes with air pump and Quick Start guide
●  30-day return policy
● High-grade inflatable PVC: 100% leak-proof
● Withstands up to 100kg body weight
● Two heavy-duty, double-stitched neoprene handles
● Deflate and pack easily with one-click push valve
● Each FX product is committed to sustainability

*Disclaimer: Always practice safety first.
Consult with a physician before any workout routine. Be sure to use proper form and take the time to experiment with the water in motion.

EXCLUDING SALES TAX (Paid by the buyer)

  • FX Tank 20 x 1
  • Air pump x 1
  • Instructions x 1

We want to ensure you have all the tools for success, which is why every aqua bag purchase comes with complimentary access to the FX 101 program in the FX App.

Upon completion of your purchase, you will receive an email detailing how to download the app. We're excited to support you on your fitness journey!

  • 30-day Return
  • 1 Year Warranty
  • Sustainable Product
  • Training Support

Customer Reviews

Based on 22 reviews
91%
(20)
9%
(2)
0%
(0)
0%
(0)
0%
(0)
L
Linda

I bought it for my husband as I have had the cube almost a year and I have done really well with it. The cube helped me get the lifting weight gradually built up after losing a lot of muscle without having to have lots of equipment around.
The tube 20 is versatile and tough while the unstable, water shifting load gives a really good workout. Videos have an excellent variety and give a range of use.
I think the boba will be the next purchase.

J
Julien GALEA
X-cellent

This word his my point of view.

d
dustin po
young athlete

it's great equipment for my young athlete.

d
dustin

it's great equipment for my young athlete.

A
Ash Ayonote
FX

Very good device to work with. Good for core and stability.

Which Fluid X Aqua Bag Is Right For You?

Choose based on your training goals and experience level

Beginner Intermediate Advanced
CUBE 7
DB5
BOBA 13
TANK 15
TANK 20
FX Cube 7
$84
FX Cube 7
7 kg max weight
  • Controlled instability
  • Rehab & precision work
  • Most compact & portable
  • Pilates-style exercises
  • Less water movement
Learn more →
DB5
$77
DB5
5 kg max weight
  • Classic dumbbell style
  • Adjustable grip tightness
  • Curls & presses
  • Lowest price point
  • Wrist alignment feedback
Learn more →
FX Tank 15
$110
FX Tank 15
15 kg max weight
  • Sandbag-style training
  • Compound movements
  • Deadlifts, lunges, carries
  • Dual handle positions
  • Barbell alternative
Learn more →
FX Tank 20
$117
FX Tank 20
20 kg max weight
  • Highest capacity
  • Advanced training
  • Pro-level resistance
  • Portable Bulgarian bag
  • Popular with trainers
Learn more →

All products include: 100% leak-proof construction • One-click valves • Free FX App access • 1-year warranty • 30-day returns