Description
Discover innovative hydration with the GO3 Ozone Water Purifying Cap, a groundbreaking travel water purifier handcrafted in the USA. This American-made water purifying cap harnesses the patented EO3® electrolytic ozone technology to purify water directly inside your Nalgene® wide-mouth 1L or 650 ml bottles. Designed specifically for outdoor enthusiasts and adventurers, this compact and eco-friendly accessory transforms your bottle into a powerful purification system, making fresh, safe water accessible anywhere. Whether you’re hiking, camping, or traveling, the GO-3 cap offers a reliable and chemical-free solution to water filtration, setting a new standard in the portable water filters and purifiers category.
- Dimensions: Fits Nalgene® wide-mouth 1L (32 oz) and 650 ml bottles perfectly
- Materials: Durable, high-quality components assembled in the USA with imported parts
- Technology: Utilizes patented EO3® electrolytic ozone purification for effective water treatment
- Use Cases: Ideal for camping, hiking, outdoor recreation, and emergency water purification
- Eco-Friendly Design: Chemical-free purification reduces plastic waste and reliance on bottled water
- Compliance: TSA-compliant for convenient travel use
- Origin: Carefully crafted in the USA by Roving Blue, a family-owned company in Wisconsin
The GO3 Ozone Water Purifying Cap is perfect for anyone seeking a compact, efficient, and reliable water purification solution on the go. Whether you’re exploring remote trails or navigating urban travel, this American-made cap ensures you have access to pure water at your fingertips. Elevate your outdoor gear with this innovative purifier that combines advanced technology with thoughtful craftsmanship.
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Marketplace Policy
DELIVERY & SHIPPING
- Due to the nature of our marketplace and the majority of our products coming from independent sellers and vendors, each delivery window and shipping fee will vary from seller to seller. The "Estimated Delivery" dates on each product page represents the delivery window for that specific product. With this in mind, the below provides an average delivery time across the Apollo Marketplace.
- Continental U.S. delivery time - 2-5 days
- Canada delivery time - 7-10 days
- International delivery time - 7-14 business days
SHIPPING COSTS
Upon finalizing your purchase, the shipping fees are calculated by aggregating the individual rates set by each seller for their products. For instance, if one of your selected items has a shipping fee of $5 from Seller 1, and another item incurs a $6 charge from Seller 2, your combined shipping total at checkout will be $11. However, should your order from any individual seller meet their stipulated free shipping threshold, the shipping fee attributed to that seller's items will be waived, therefore reducing your overall shipping costs at the time of checkout.
RETURNS
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Seller's Policy
About the Seller
About Roving Blue

Roving Blue Founder, Yana DeMyer
Thank you for visiting! Roving Blue, Inc. is a small, family-owned company based in Wisconsin. For the football fans out there, we're just half an hour north of Green Bay! We take pride in producing high-quality products and try hard to source American-made components whenever possible.
Since our founding, we’ve remained committed to keeping our products accessible. Not only have we never raised our prices—we’ve actually lowered them as we’ve grown and been able to purchase materials in larger quantities.
In 2024, we celebrated our 10-year anniversary. Thanks to your encouragement, support, and invaluable feedback, we’re excited to keep growing year after year. We look forward to continuing to bring you great products you can depend on!
$199.00

Gold Brass Scala Hoop Earri...$88.00
GO3 Electrolytic Ozone Water Purifying Cap – Travel Purifier Accessory | Made in USA
Ozone Solutions for:
Travel, Outdoors, & Emergency Preparedness
From our tiny Ozo-Pen® and FortiFilter™ to our newest product, the GO3®, you will love the long life, convenience, and peace-of-mind that come with our portable ozone water purifiers.
Water & Food Safety for Home, Farm & Offgrid
Ensure the safety of your food and water and clean things without harsh chemicals. Whether you live in the city, out on the farm, or far off-grid, you're not buying a product,you are achieving peace of mind.
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Why the Apollo marketplace?
- Protected by ApolloWe know that peace of mind is behind every person and family making a purchase. If your purchase is damaged, lost, or not as described by a seller, we will offer a full refund. See our Buyer and User Policy page for more information.
- American Class ProductsThe mission is that more products will be 100% made in America. Our three groups of transparency ensure that each person knows how much of their product was produced in America.
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