1 Gallon Insulated Stainless Steel Water Bottles

At Iron Flask, we're big on hydration — and our bottles are, too. Meet our largest size, the 1 gallon water bottle. Available in a variety of colors, the 128 oz water bottle is perfect when you need enough hydration to last throughout the day. Durable, dependable, and affordable, the 1 gallon water bottle provides everything you need to quench your thirst for the long haul. The 128 oz water bottle has a wide mouth design, which makes it convenient for filling up with water or other drinks.

If you’re thirsty to make changes to your daily routine, make hydration a priority. Not only can it help boost your body’s ability to build muscle, adequate hydration can also improve brain function and help you sleep easier at night. Drinking from a gallon water bottle, you’re sure to see improvements in your health, endurance, and overall mindset. 

Through the years, we’ve seen the demand for large insulated water bottles grow. As more people catch onto the amazing benefits of hydration, our designs have grown, too. With 128 oz of water on hand, there’s no shortage to what you might achieve in a day!

128 Oz Reusable Large Water Bottles

Just like all of our best-selling water bottles, the 1 gallon insulated water bottle has a long list of benefits. First of all, the 1 gallon water bottle is made with stainless steel, which is non-toxic and never imparts a metallic flavor. Ultra-dependable, the 128 oz stainless steel water bottle also never rusts, making it a breeze to keep clean and sanitized.

Iron Flask 128 oz insulated water bottles feature a double wall of vacuum insulation. This technology helps keep drinks cold or hot for hours, allowing you to enjoy your favorite beverages at the perfect temperature. Our bottles are also easy to carry. Featuring a durable handle for easy transport and storage, Iron Flask 128 oz water bottles are great to take along on long car rides, hikes, and anywhere else you might travel. The leak-proof spout lid eliminates all worries about spilling on the go. 

When it comes to 128 oz insulated water bottles, accessories make all the difference. The Iron Flask cleaning brush is essential for keeping every inch of your 128 oz stainless steel water bottle clean. Its long handle design makes dishwashing a breeze.

Our lifetime warranty and 100 percent satisfaction guarantee further sweeten the deal. When you shop Iron Flask, rest easy knowing you’re investing in hydration for the long haul.

In the market for a variety of water bottle sizes? Our 64 oz Wide Mouth Water Bottle with Straw Lid makes it easy to sip on the go. A spout lid version is also available. No matter your preference, there’s an Iron Flask large water bottle ready to fit perfectly into your daily life. 

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