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The most innovative and efficient flood barrier

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The FlowStop flood barrier comprises two main parts: An upper cushion and a lower one.

The top cushion is designed to push sideways against the wall. The intense pressure locks the device, creating a roof for the lower cushion.

With the upper cushion inflated, the lower cushion is stuck between the ground and the upper cushion. As you inflate it, it will expand and press down against the ground, creating a perfect waterproof seal.

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Our patented technology

Double cushion

Double cushion

The first cushion allows lateral plating in the opening to be protected, the second cushion is placed towards the ground.

High quality valve

High quality valve

Air valve High quality PVC material, robust, corrosion resistant and durable.

Right angle corners

Right angle corners

The corners perfectly fit the corners of the openings to guarantee a 100% watertightness

Quick instructions for use

Quick instructions for use

The diagram of the 4 deployment steps is printed directly on the FlowStop

DropStitch

DropStitch

The FlowStop is made from DropStitch material (flat, rigid surface when inflated, but rolls and carries when deflated).

Convenient handle

Convenient handle

The handle makes it easy to position the FlowStop in the opening to be protected from flooding

Technical specifications

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Width Depth Height PSI Weight
Flowstop S Up to 44″ 6 in 31.5 in 15 9 lb
Flowstop M Btw 44” & 89” 6 in 31.5 in 15 15 lb
Flowstop L Btw 90” & 135” 7.8 in 39.4 in 15 24 lb
Flowstop XL Btw 136” & 185” 7.8 in 39.4 in 15 31 lb
Wd Dp Ht PSI Wt
S Up to 44″ 6 in 31.5 in 13 9 lb
M Btw 44” & 89” 6 in 31.5 in 13 15 lb
L Btw 90” & 135” 7.8 in 31.5 in 13 24 lb
XL Btw 136” & 185” 7.8 in 31.5 in 13 31 lb

Width

Custom-made to the size of your opening

Height

31.5 in as standard height and up to 47.5 in

Depth

Flowstops come in standard depth, but can be customized at no extra cost if the depth of your opening is smaller than usual. The depth of your opening needs to be at least ⅔ of the flowstop depth.

The key differences

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Custom-made


FlowStop is custom-built to fit your opening perfectly, so that no drops get through.

Zero Construction

Easy to install


The double-action pump is included with every order. It takes just a few minutes to inflate the FlowStop and dry your home.

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Easy to store and very light


Like an air mattress or paddleboard, your FlowStop can be rolled up and stored away once deflated.

Anyone can take it along, set it up and transport it.

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High flood barrier


Prevent water from entering your property, whatever its level, with a high flood barrier. Tell us the height of your barrier and we’ll make it to measure.

Simple & easy to install

Sizes

We can go as long or tall as you need

Width

Measured to be custom-made to fit your opening. Please measure your openings from wall to wall.

Height

Flowstop minimum height is 31.5″, but they can be as tall as you need.

Based on your experience and research, how much water are you expecting?

Depth

The depth of the flowstop depends on its length.

– Under 78″ wide: 

The FlowStop depth will be 4″.

– Between 78″ and 177″ wide: 

The FlowStop depth will be 6″

– Above 177″ wide: 

The FlowStop depth will be 11.8″

Make sure your opening is deep enough for your FlowStop

Wall surfaces  

Flowstop works on most surfaces

It’s joint can fill-up and seal up to 0.27 inches gaps or imperfection on your wall

Do not use it on surfaces that are too slick. Do not use it against drywall.

Straps on long Flowstops

Depending on the size of the opening and the height and width of your FlowStop, we may require straps.

The straps are anchored to the ground with permanent bolts. See tutorial for more information

FlowStop is a custom-made inflatable anti-flood device that protects openings in your building from exterior flooding. Our devices are 100% watertight and created specifically to fit your openings. From front and garage doors to windows of any size, we offer flood protection to prevent costly disasters.

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