Helikon Survival water filter

It works perfectly as an addition to the Katadyn filter. Thanks to this pre-filter cleaning the water, the main filter needs to be cleaned less frequently. It also doesn't take up much space in the backpack.

The ideal filter for preliminary cleaning of water from mechanical and partially biological contaminants. Lightweight, compact, and inexpensive – definitely worth buying.

A very good filter for pre-cleaning heavily polluted water. Solidly made from thick cotton, plus there's a waterproof cover. When folded, it's small and lightweight. I'll use it as a supplement to the straw filter.

The filter is essential for the initial purification of water from mechanical and simple chemical contaminants. You can easily hang it from a tree and leave it to strain the water.

Pre-filtering water is necessary so that each filter works longer. The Helikon bag is a well-thought-out product made by specialists. The materials, design, capacity, way of hanging, and the thoughtful case make the bag a very useful tool for camping and emergencies. I recommend both the product and the store.

A well-made millbank at a great price, a must-buy if someone cares about the durability of a water filter so it doesn’t get clogged too quickly. Very practical solution, especially for people camping for more than one night.

Polish product, very good filter and company. I have a jacket and pants from this manufacturer — they are durable. The product matches the description and is made from good materials.

I haven't had a chance to use it yet. The concept seems interesting. I have doubts about the instructions, which say to first soak the bag in clean water. If I had that much clean water, I wouldn't need filtration. Maybe it makes sense for larger amounts, but at the start, I'd already need about half a liter of clean water. I also wonder how the manufacturer envisions cleaning—it starts to unravel when you turn the bag inside out, but you have to scrub it well so it doesn't get moldy.

I'm very positively surprised. I previously tried to make a pre-filter myself, and here is a ready-made, well-crafted product from good materials. I highly recommend it.

A useful gadget for outdoor trips.

A very interesting solution. The dense material prevents solid particles, such as fine sand, from getting through.

A sturdy, thick bag suitable for preliminary filtration. I recommend it!

A great option for pre-cleaning even heavily polluted water.

Works well during field trips. I recommend it.

The product met my expectations. I recommend it.