Shipping costs and delivery speed are calculated based on the delivery location.
The Coldest Water filter is specifically designed to fit all The Coldest Water thermos bottles with a straw port, which include a straw for drinking water.
This specific filter uses technology developed for use by NASA. No specific maintenance of the filter is required, only that it be rinsed after each use and left to dry.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.