Waterdrop Gravity Water Filter Straw

Stay hydrated anywhere with confidence using the Waterdrop Gravity Water Filter Straw with 1.5-Gallon Water Bag, a professional-grade water purification system designed for outdoor adventures, emergency preparedness, and survival situations. This all-in-one filtration solution delivers clean, better-tasting water wherever your journey takes you—without electricity, chemicals, or bulky equipment.

At the core of the system is a 5-stage filtration process that combines premium coconut shell activated carbon, a 0.1-micron ultrafiltration membrane, and multiple high-performance filter layers. Together, they effectively reduce chlorine, sediment, sand, dirt, particulates, unpleasant odors, and bad taste—helping ensure safer drinking water from natural sources like rivers, lakes, and streams.

Paired with a 1.5-gallon gravity-fed water bag, this setup is ideal for camping, hiking, backpacking, emergency kits, and first aid scenarios. The large-capacity bag holds the equivalent of 11 standard 500ml bottles, supplying enough clean water for a full day of outdoor activity or multiple people without constant refilling.

Built for longevity, the Waterdrop filter straw delivers up to 1,400 gallons (5,300 liters) of purified water with a strong flow rate of up to 700 ml per minute, providing fast, effortless hydration when you need it most.

An innovative backwash cleaning function extends the life of the filter by allowing you to flush debris out using clean water. Simply remove the mouthpiece and backwash using a standard water bag or compatible bottle (27.5mm thread). The recyclable, eco-friendly design ensures sustainable use without disposable waste.

Highly versatile, the filter straw can be connected to water bags, bottles, or used directly—making it a flexible and reliable solution for survivalists, travelers, and outdoor enthusiasts alike.