1. Open up bag and take new filter out.
2. Remove old filter from the bottle by pulling it off the straw.
3. Insert filter cartridge into the straw. No need to soak the filter beforehand, it’s ready to use already!
4. Set you filter change indicator. Rotate the date band so the arrow is pointing to install month, the X symbol indicates when to replace your filter.
IMPORTANT: With daily use of 42oz, the filter should be replaced every 2 months.