portable-water-filter-straw-top (4760803442770)

Waterdrop Portable Water Filter Straw with Collapsible Water Pouch and Gravity Water Bag

Compatible with Waterdrop Water Filter Straw
Regular price $36.99
Sale price $36.99 Regular price
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  • Key Feature
    • [Superior Performance] Waterdrop water filter straw adopts a 0.1-micron hollow fiber membrane, could effectively reduce harmful substances and bacteria in water. The adoption of high-grade coconut shell activated carbon fiber improves odor and taste, ensures water safety and delivers better drinking experience.
    • [Versatile Uses] Connects to water bags or water bottles to filter water for drinking. No need for the extra syringe to backwash. It eliminates cumbersome fittings and saves space, bringing you pure water with the greatest convenience and comfort.
    • [Outdoor Water Needs] The filter straw could fulfill all your outdoor water demands, is a nice option for hiking water filter, camping water filter and travel water filter.
    • [Large Filtration Capacity] With small frame but large filtration capacity, the portable water filter straw can provide up to 100,000 gallons of safe drinking water.
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Shipping policy

Shipping rates and delivery estimates

Shipping Method

Estimated Delivery Time


Economy Shipping

4-10 Business Days


Standard Shipping

3-6 Business Days

$5.99(Free on order over $200)

Express Shipping

2-5 Business Days


* Shipping charges for your order will be calculated and displayed at checkout.

* The Delivery Time is calculated based on the shipping date, not the order date. The actual shipping date can be delayed due to invalid shipping address, weekends/holidays, etc.

Handling Time:

We need 24h to 48h to prepare your order, most of the packages will be shipped out within 24 hours except weekends and holidays.

Track your order

Once your order is shipped, you will receive an email from us containing the tracking information. Tracking information is also available in your "Order Details" page.

Shipping areas

The products can be delivered to the most of states in United States except American Samoa, Micronesia, Guam, Marshall Islands, Northern Mariana Islands, Palau, Puerto Rico and U.S. Virgin Islands.

International shipping

We are sorry that the international shipping service is not supported for the time being.

Shipping Carriers

We work with 4 carriers to make sure your order will arrive on time: UPS, USPS, FedEx and Amazon Logistics US.

Delivery Time Exceeded

Shipping might experience delay due to covid-19. If your order is delayed, please contact us via email service@waterdropfilter.com, we will check the situation with the transportation company in time. Thanks for your understanding and support.

Note: We don't accept requests to specify a certain carrier to deliver the package.

Shipping origin

The package will be shipped from one of our US warehouses closest to your location.

* If you have any questions, you can contact our customer via LiveChat or email to service@waterdropfilter.com, we will reply to you as soon as possible!

Sales Tax

The sales tax will be collected in accordance with U.S. tax laws. Customers whose delivery address within the following states will be charged a certain tax at checkout, and the tax rate is determined by the local government. (AZ, CA, CO, FL, GA, IL, IN, KY, MA, MD, MI, MN, NC, NJ, NV, NY, OH, PA, TX, UT, VA, WA, WI) All taxes collected will be reported and filed to the IRS on time.

30-Day Return ×
No Worries Guarantee

Thanks for shopping at Waterdrop. We appreciate the fact that you like to buy the stuff we build. We also want to make sure you have a rewarding experience while you're exploring, evaluating, and purchasing our products.


If you wish to cancel an order, please contact our customer service team

If you contact us within 24 hours of purchase:

We can cancel the order for you at no additional cost. The cancellation may take up to 3 days, thank you for your patience and understanding.

If the package is already shipped, we will issue a prepaid label and return your payment after we have received the package from you.

If you contact us after 24 hours of purchase:

You need to bear the return fee if the package is already shipped (depends on our system, not the order status).

The product has to be damage-free, packed in the packaging we sent to you, and with the original receipt of the purchase.

We will return your payment after we have received the package from you.

There are times when we may not have the product(s) that you choose in-stock or may face some issues with our inventory and quality check. In such cases, we may have to cancel your order. You will be intimated about it in advance so that you do not have to worry unnecessarily about your order.

Return Policy

We accept return reasons including defective, no longer needed, change mind, not as described, etc.

If you want to return the item without any quality issue, you need to bear the return fee yourself and pay 20% of the original order as a restocking fee. We will cover the return postage for return requests regarding quality issue.

Once you received a damaged / incorrect item and you want to file a claim, please email


together with your order information and the picture of the damaged / incorrect product. We are eager to help.

If you would like to return a product, please follow the next guidelines:

Step 1: contact the customer service team before return a product, we will reply you with return tips within 24 hours.

How to contact:

Email: service@waterdropfilter.com

Toll-free Tel: (888)-352-3558

Step 2: prepare package after you get confirmation from customer service team, please be noted the following requirements:

• The order number needs to be included in the package. You can print out the order detail page or leave a note in the package.

• The package needs to come back with the original receipt of the purchase.

• The product has to be in the packaging we sent in the first place.

• The product has to be damage-free (not applicable for defective products), damage on the product will void the refund.

Step 3: Please contact our customer service and send your return tracking number. We will track the package, and refund your money within 5 working days after we receive and check the package .

Return Window

We offer a 30-day return guarantee. Warranty will begin from the date the product is received. If a product grows defective during the warranty period due to a quality issue rather than your own breakage or misuse, we can accept a return, provide free repair service, or issue a new replacement.

Return address:

Ecolife Technologies, Inc.

17910 Ajax Circle

City of Industry, CA 91748

United States

Tel: 888-352-3558

Refund Policy

After receiving your request or your packages, it may take up 1-7 business days to refund your money. (Unfortunately, due to current situations and the COVID-19, your refund may require an additional 3-5 days to process. Thank you for your patience and understanding.)

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Model number
Replacement model number
Filterstraw: Φ1.38 inches*7.09
Collapsible water pouch: 5.7 inches*10.7 inches
Gravity water bag: 8.8 inches*16.7 inches
Filtration capacity
10,000 gallons(Laboratory theoretical value). For your health, we recommend that you replace it annually or every 1400 gallons.
Filter media
Activated carbon fiber

How to purify water when camping?

Boiling water is a surefire way to kill bacteria, viruses and protozoa in the water that can make you sick. But if it is not convenient for you to boil water outdoors, a water filter straw would be a perfect way to purify water when camping. It usually doesn’t take much space in your backpacking, but could remove most of the harmful substances from the outdoor water source like river, stream and etc.

What is a portable water filter straw?

Portable water filter straw is a kind of filter in a small size, which could help you drink water directly from the outdoor water source just like from a straw. It usually uses active carbon or active charcoal-based systems (and in some cases, there are unique other systems in place), so that it can reduce harmful bacteria and viruses from water. Their primary use is for cleaning water found in nature, allowing you to drink it and cook with it when you're out in the wilderness.

What is the working principle of this Waterdrop portable water filtration system?

Waterdrop filter straw adopts a 0.1-micron hollow fiber membrane, which could prevent protozoa from going through the outer walls of the tubes, while water can easily pass through them. The principle of micro-fibrous tubes is similar to that of medical dialysis technology. Therefore, water going through the filter straw will be clean and safe.

Which kind of bottle can be used with the filter straw?

The filter straw can be used with pop bottles that have a thread diameter of 27.5 mm. Therefore, to avoid leakage, it can be matched only with a mineral water bottle that has a thread diameter of 27.5 mm.

Can I use this camping water filter to filter saline water?

No, the filter should be used to filter freshwater rather than saline water.

What should you pay attention to after using Waterdrop portable water purifier?

Backwashing is essential for keeping the water filter straw in good condition and making it easy to be used for multiple times.
Do not use chemicals to clean the filter straw because they will shorten the service life of the carbon fiber filter.

How to wash portable water filter straws after use?

Generally, how to wash a portable water filter after use? After drinking, blow air through the mouthpiece frequently, or drain the water filter straw by shaking out as much water as you can. After using, remove the mouthpiece, and flush it with clean water. Cap the filter tightly after it has dried.
But, what if you use Waterdrop camping portable water filter?In addition to the general cleaning method mentioned above, our collapsible water pouch and Gravity Water Bag can be used, or a pop bottle with a standard thread diameter of 27.5 mm can be filled with clean water to backwash the portable water filter.

I have used the water filter straw only once and it no longer works, why?

If the straw is not cleaned up after use, the filter element will be blocked. It should be repeatedly backwashed to remove impurities on the surface of the ultra-filtration membrane.

Why is there a peculiar smell in the second use of my portable water filter straw?

After use, dirty residues are left in the filter element. Please backwash the filter straw to remove dirty impurities on the surface of the filtration membrane. Each time before using, it should be backwashed to avoid a peculiar smell.

How to buy replacement filter straw and water bags?

Click to check out the replacement for this model set: Waterdrop water filter straw, gravity water bag, collapsible water pouch.
Pre-filter fabric
Pre-filter fabric
  • Reduces contaminants from the wild, such as stones, leaves, etc.
Hollow fiber membrane
  • Intercepts 99.99% of bacteria.
Activated carbon fiber
  • Improves the smell and taste of water sources.
Post polyester membrane
  • Reduces rust, sediment, particulates, and other impurities.
Smaller pore diameter
  • The smallest bacteria known in the biological world has an average length of 2 microns and a width of 0.5 microns. The Filterstraw adopts a 0.1-micron hollow fiber membrane to remove most of the common bacteria and protozoans in water.
Smaller pore diameter
Multiple ways to use
Multiple ways to use
  • A Filterstraw can accomplish all of the functions of other personal water filters because of the variety of ways it can be used. It can be connected to our collapsible water pouch and gravity water bag to filter water for drinking. Both ends can be disassembled and connected to water bags or water bottles, offering you clean drinking water anywhere you want.
Meets various outdoor water needs
  • Suitable for outdoor entertainment, hiking, camping, domestic and international travel, and emergency preparedness (tornadoes, rainstorms, earthquakes, floods, etc.); meets emergency water needs in various situations.
Meets various outdoor water needs
Easy to carry
Easy to carry
  • Waterdrop gravity-fed water bag is a flexible product made specifically with active lifestyles in mind. Simply fold it into any shape and carry it wherever you need it. It is reusable and designed to withstand long-term usage. Waterdrop collapsible water pouch is less bulky than other water bottles and can be easily carried anywhere you want.
Smaller frame but bigger capacity
  • The Filterstraw’s compact design makes it easier to carry, and it can provide up to 1,400 gallons of safe drinking water. It is easy to drink water with a Filterstraw and to quench your thirst instantly.
Smaller frame but bigger capacity