The company that makes the product is called Seychelle and their website is Seychelle.com. They offer several different styles and sizes of water filtration systems and a couple of options on levels of filtration.
One concern I had was if you used the bottle for a couple of days (like camping, or an emergency) and then didn't use it for a year, would the contaminants grow in the filter and it become unusable?
From their website:
Most Seychelle filters deliver up to 100 gallons of great-tasting, clean water before they need to be changed. This is equal to up to 757 half liters of bottled water! The time to change any filter is when the water flow becomes greatly diminished, and it is difficult to squeeze it through the filter bottle.The filters should not be used with salt water.
Seychelle filters have an indefinite shelf life. For prolonged storage, follow these simple steps:
- Fill the bottle with chlorinated water made by mixing half tsp of chlorine with one US gallon of water. Run this through the system and then rinse and flush with filtered water.
- Allow the bottle/filter assembly to dry overnight unassembled.
- Re-assemble the bottle/filter.
You may now store the product for any length of time.
I would encourage you to review their entire website and compare products with others similar. I picked up a couple of these to throw in my family 72hr kits and will also look to purchasing an extra advanced filter for each bottle to have on hand. If your source of water is questionable in any way, this bottle can provide you with 100 gallons of water at 99.99 percent filtration of pollutants.
Prices vary online from $27 to $37 for the one shown. I did find the bottle for $22 sold by the Church of Jesus Christ of Latter Day Saints at their distribution center. I believe it comes with the standard water filter.