Are the Stainless Steel Water Bottles insulated? June 14, 2022 20:12 Updated Follow Yes, our stainless steel bottles are double wall insulated. Related articles How long do the Stainless Steel Water Bottles keep water hot or cold for? Do AquaTru Under Sink purifiers use the same filters as the AquaTru countertop models? Where can I buy AquaTru Descaling Kits? How do I descale my AquaTru or AquaTru Connect? Can I purchase extra clean water pitchers?