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Osmo Flood Barrier

Osmo Flood Barrier is a disposable super absorbent barrier designed to form a water-tight barrier protecting homes and businesses from the flow of food water. Available in 1.5 metre and 3 metre lengths, simply place in front of a door, activate with water, and it absorbs up to 30 litres of water, crystallises, and forms a water-tight barrier. Using super absorbent technology, the barrier absorbs water and binds together to create a flood protection sock. The flood barrier absorbs water on contact, making it quick to deploy, and the ideal sandbag equivalent.

Looking for an award-winning flood barrier that can be fitted in seconds, and protect your house against up to 60cm of water? Have a look at ourfamous Floodshield flood barrier.


  • Protects property from invasive flood water
  • Inflates on contact with water in minutes
  • Once inflated, forms a resilient, leak-proof, water-tight barrier against most surface
  • Ideal for use across wide doorways, garage doors, driveways, footpaths and gates or to divert flood water away from the property
  • Can be used as a temporary flash flood or long-term flood measure
  • Easy to store when not in use
  • Easy to roll out in an emergency
  • Eco-friendly sandbag equivalent, using 50% reclaimed material
  • Made in the UK from OSMO’s Super Absorbent Polymers.
  • Non toxic and non hazardous.

How to use

Simply roll out and the water will absorb and activate the flood barrier:

Technical details

  • Dimensions flat length x width 1500/3000 x 210 mm
  • Dimensions inflated length x width x height 1500/3000 x 210 x 90 mm
  • Absorbency capacity per barrier 15/30 litres
  • Product weight: 1.5m-265g • 3m-512g

Delivery information

Customer Reviews

Based on 24 reviews
Looks Ideal

Haven't had to use yet thank goodness

paul hurst
Would recommend

Does what it says

Gordon Burgess
Great idea but

I bought 4 x 3 metre flood barriers, used one in earnest 4 weeks ago but can’t drain it, I’ve had it looped over a ladder and it’s only partially drained!

Lesley Tomkins
Not yet put to the test!

I haven't had the need to put them to the test and sincerely hope I never have to! However, they look good, the price was very reasonable and the service was excellent.

Derek Prior
Could do better.

Disappointed in the flood barrier, as it did not inflate the full length of the 2 lengths of 3metres I had. Emailed complaint but did not receive answer.

Hi Derek - I'm very sorry to hear your Osmo barriers did not inflate properly. I also apologise that we have not received your email - I can't see it on our system so must be lost in transit. Would it be possible to try again to and we can try and fix the issue.
Many thanks