Why does the LIFESAVER bottle come with a pre-filter disc?
The blue pre-filter disc that is fitted into every LIFESAVER bottle acts as a first-level filter to block silt, sand, leaves and other detritus from entering the main filtration component of the bottle. The reason for this is to protect the nanofilter from larger detritus. This lengthens the life of your cartridge.
The pre-filter disc is also known as a scavenging sponge, as you can use it to scavenge water from those hard to reach water sources such as puddles, streams and crevices. The water-soaked sponge can then be squeezed into the LIFESAVER bottle to top up the water level.
If you are planning to go camping, hiking or travelling soon why not stock up your LIFESAVER consumables with a pack of Pre-filter Discs to both protect your bottle and provide you with greater flexibility when collecting water.