: For heavy users (like aquarium owners or those with multiple humidifiers), Walmart often stocks 12-packs of 1-gallon jugs for easier stocking. How to Shop: Pickup vs. Delivery

: Often located in the baby aisle, this version is specifically marketed for mixing infant formula. It is slightly cheaper, starting around .

: If you have a Walmart+ subscription , you can get distilled water delivered directly to your door. Reviewers note this is especially helpful for those living in apartments, though it’s wise to leave a note for delivery drivers if you have stairs.