The AllOne Wellness CDS Water Purification Solution is a ready-to-use glass bottle with a capacity of 4 oz (118ml) and a Sealsafe design to ensure freshness. This product is compatible with the CDS 3000 ppm model and is made of high-quality glass. Ideal for outdoor activities like camping and hiking, this portable water filter solution is perfect for staying hydrated in remote settings. Made in the United States, this water purification solution is a reliable option for those looking to ensure clean and safe drinking water on the go.