Review on Enhance Your Hydration Anywhere with pH ON-THE-GO Alkaline Water Filter Pouch - Convenient Portable Filtration System for Bottles, Pitchers & Containers - Savor High pH, Long-lasting Supply (3-pack) by Lauren Salvage

I have bought them before, really like how they work. The latter fit into a liter bottle, while driving I filled it up with water for the night, the next day it was great. When I received them this time they were too big for a 1 liter bottle. If they were different sizes, I did not catch. They work in my 5 gallon bottles that I get with reverse osmosis water. I like the pH. Reduces acidity. I need to see if I can get smaller ones for my water bottles that I carry every day or just use water from a dispenser.