---
product_id: 191115277
title: "Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 0.1 Micron, 5 Stage Filtration"
brand: "waterdrop"
price: "B/.39"
currency: PAB
in_stock: true
reviews_count: 4
url: https://www.desertcart.com.pa/products/191115277-waterdrop-gravity-water-filter-straw-camping-water-filtration-system-water
store_origin: PA
region: Panama
---

# 700 ml/min max flow rate 0.1 micron ultrafiltration membrane Recyclable with backwash purifier Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 0.1 Micron, 5 Stage Filtration

**Brand:** waterdrop
**Price:** B/.39
**Availability:** ✅ In Stock

## Summary

> 💧 Stay hydrated, stay unstoppable — your ultimate survival sip!

## Quick Answers

- **What is this?** Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 0.1 Micron, 5 Stage Filtration by waterdrop
- **How much does it cost?** B/.39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/191115277-waterdrop-gravity-water-filter-straw-camping-water-filtration-system-water)

## Best For

- waterdrop enthusiasts

## Why This Product

- Trusted waterdrop brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Hydration Flow:** Enjoy up to 700 ml/min water flow—stay refreshed without the wait.
- • **Versatile & Lightweight:** Connects seamlessly to bottles or water bags, weighing just 0.19 lbs for effortless portability.
- • **Eco-Friendly & Self-Cleaning:** Innovative backwash function keeps your filter fresh and reusable, reducing waste.
- • **Long-Lasting Adventure Ready:** Filters up to 1,400 gallons (5,300 liters) to fuel your journeys without replacement hassle.
- • **5-Stage Ultra-Clean Filtration:** Eliminates chlorine, sediment, and odors for pristine hydration anywhere.

## Overview

The Waterdrop Gravity Water Filter Straw is a compact, 5-stage filtration system featuring a 0.1 micron ultrafiltration membrane and premium coconut shell activated carbon. Designed for outdoor enthusiasts and emergency preparedness, it delivers clean, safe drinking water at a rapid 700 ml/min flow rate and filters up to 1,400 gallons. Lightweight and recyclable with a backwash function, it easily connects to bottles or water bags, making it the perfect companion for hiking, camping, and travel.

## Description



## Features

- 5-Stage Efficient Filtration: With adoption of premium-quality coconut shell activated carbon, 0.1 um ultrafiltration membrane and other raw materials, the Water Filter Straw can effectively reduce harmful substances like chlorine, particulates, sediment, stones, sand, dirt, bad taste &odor in water to ensure the water safety and deliver better drinking experience.
- Longer Lifespan: The Waterdrop Filter straw can provide safe drinking water up to 1,400 gallons (5,300 liters), and ensures the maximum water flow rate of up to 700 ml/min to provide more relaxed outdoor water drinking experience.
- Recyclable Straw: With innovative backwash purifier function, the inside of the Water Filter Straw can be kept clean at all times and it is recyclable, safe and pollution-free. If the water flow decreases or the filter has been used for a long time, you can remove the mouthpiece, flush it with clean water. (Standard water bag can be used or pop bottle with thread diameter of 27.5mm can be filled clean water for backwashing the filter straw.)
- Versatile Uses: The Water Filter Straw can be connected with water bags or water bottles to filter water for drinking. Both ends of it can be disassembled and connected with the water bags and the water bottles to offer you clean drinking water anytime anywhere.
- Outdoor Water Needs: Fulfill all your outdoor water demands: hiking, camping, domestic and international travel, emergency preparedness (tornadoes, rainstorms, earthquakes, floods, etc.) to meet the emergency water demand in a variety of situations. Each straw only weights 0.19 pounds.
- Warm Prompt: Upon first use the filter, please uncap and infiltrate the straw in the clean water for 10 seconds to prime the filter. This will help the internal ultrafiltration membrane get wet and water can be filtered more easily. According to your area water quality, regularly backwash the straw with clean fresh water, which can prolong the service life and prevent blockage.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Waterdrop |
| Special Feature | Emergency Preparedness, Personal Water Filter for Hiking, Water Purifier Survival |
| Package Information | Bag |
| Installation Type | No installation required |
| Power Source | Non Electric |
| Item Weight | 0.09 Kilograms |
| Model Name | WD-FSBU |
| Maximum Flow Rate | 700 Liters Per Minute |
| Supported Water TDS Level Maximum (PPM) | 300 |
| UPC | 840814169889 |
| Manufacturer | Waterdrop |
| Item Package Dimensions L x W x H | 10.71 x 5.12 x 1.5 inches |
| Package Weight | 0.11 Kilograms |
| Brand Name | Waterdrop |
| Warranty Description | ‎30 days limited filter warranty - Any part of the water filter which fails due to a defect in materials or workmanship during this limited 30-day warranty. |
| Color | Blue |
| Number of Items | 1 |
| Part Number | WD-FSBU-1 |
| Style | 1 straw |
| Size | 1pack |

## Product Details

- **Brand:** Waterdrop
- **Special Feature:** Emergency Preparedness, Personal Water Filter for Hiking, Water Purifier Survival
- **Material:** BPA Free Food-Grade Material
- **Capacity:** 1400 Gallons
- **Included Components:** Personal water filter straw *1
- **Package Information:** Bag
- **Installation Type:** No installation required
- **Purification Method:** Hollow Fiber Ultrafiltration Membrane, Activated Carbon
- **Power Source:** Non Electric
- **Item Weight:** 0.09 Kilograms

## Images

![Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 0.1 Micron, 5 Stage Filtration - Image 1](https://m.media-amazon.com/images/I/51XC7TfDu6L.jpg)
![Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 0.1 Micron, 5 Stage Filtration - Image 2](https://m.media-amazon.com/images/I/81WKsnVwE+L.jpg)
![Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 0.1 Micron, 5 Stage Filtration - Image 3](https://m.media-amazon.com/images/I/91lX89knL0L.jpg)
![Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 0.1 Micron, 5 Stage Filtration - Image 4](https://m.media-amazon.com/images/I/71RoRDy9lvL.jpg)
![Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 0.1 Micron, 5 Stage Filtration - Image 5](https://m.media-amazon.com/images/I/71qMk4fxvcL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: does it protect against Giardia lamblia? Thanks**
A: Yes

**Q: How much does this weigh?**
A: Hi Shawn,
Thank you so much for your interest in our product. The item's gross weight is 1.09 pounds.
If you have any other inquiries, please feel free to contact us at 1-888-352-3558 (8:00 AM - 5:00 PM PST, Mon - Fri). Thank you.

Kind Regards
Mia Lauren
Customer Service Rep

**Q: how long does this product last? 1 day? 1 month?**
A: I  used it for the first time this weekend. On a backpacking trip. I thought it was useful to have in addition to a filter pump to bring water back to Camp. It seemed well-made, how long it will last Would probably depend on how dirty the water is that you put through it ,if you clean it consistently and if you were careful not to abuse it. But I will get $20 worth of use out of it for sure.  I expect it to last me for multiple trips.

**Q: Does it come with the bag?**
A: Hi Mike,

Thank you for your interest in our Water Filter Straw. Yes, the item comes with two bags.  One is the blue gravity water bag which is used to fill with the raw water, another is white used to fill with the filtered water. They are connected via the straw to filter the water for drinking.
If you have any other questions, please feel free to give us a call between the hours of 8:00 AM-5: 00 PM (PST), Monday through Friday at 1-888-352-3558. We will try our best to help you out. Thank you very much.

Best Regards, 
Mia Lauren

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome, it works, and gives you a lot of options
*by D***L on August 12, 2025*

This filter is awesome, used it on a three day backpacking trip recently. No issues whatsoever. For everyone’s information however, the reservoir bag does not seal fully when filled. The top, although it folds nicely into a handle for carrying - which is amazing and super convenient - it does not prevent water from coming out the top if you, let’s say, put the bag down on the ground to get the straps adjusted or something. So the reservoir is not for carrying water for long distances, unless you’re prepared to always keep it upright and never put it down until you can hang it. Still super doable if you’re going short distances, it doesn’t spill when you’re holding it by the handle, just if you put it down on the ground while filled and it falls over.Other than that, this kit is awesome. Gives you the option of reversing the steps, instead of filtering the water into the small plastic water bottle pouch, you fill the plastic bag with the unfiltered water, screw the filter straw onto the pouch, and drink it directly out of the filter (basically a life straw). I think the bag might be half a liter that it comes with, so if you want a bigger pouch then you’ll have to order one. This is the way I’ve seen most through hikers using it, usually with the sawyer filter setup. But this filter gives you both options, filter the clean water from the reservoir into the plastic flexi pouch or any other bottles you want, or collect the unfiltered water into the flexi pouch, attach the filter directly to the pouch, and drink through the filter.Super lightweight, condenses into a really small volume, durable (I carried water in the reservoir for more than 5 miles, by hand, leaning it against a tree when I had to put it down, and the material held up). We used it for three days and that was more than two weeks ago, long enough for any water born sicknesses to have shown if it didn’t work. Great purchase.

### ⭐⭐⭐⭐⭐ An efficient, lightweight, and fast water filtration system.
*by D***S on July 17, 2025*

This is a great water filtration system for camping. For those who are used to pumping to get clean water, this will be a pleasant revelation. For those who have used other gravity feed systems this will be an inexpensive and surprisingly quick alternative. I recently used this on a 4 day backpacking trip and love it. Here are a few highlights:1. The feed back is lightweight, flexible, and fills to 1.5 gallons in one scoop of lake water. (BTW, don't fill it all the way to 1.5 gallons--it'll work better at about 1.25 gallons.) My friend is going to purchase the bag simply because it's so much easier and more efficient than the bag his (very expensive) system came with.2. The filter has a bigger barrel than my Sawyer, and thus flows at about twice the speed.3. The filter can be back flushed with the provided collapsible bottle--no need to bring along a syringe for back flushing.4. The hanging system (also provided) is high quality and works great.Here's what I don't know:1. My friend and I suffered no symptoms of waterborne illness, but the flow rate was so strong when we first started using the system that I was worried that it might not be filtering. What can I say? I guess I'm suspicious because it worked so well! The flow rate did decrease on the 4th day (after filtering about 11 gallons of water). But even the reduced rate was similar to my Sawyer filter.2. The instructions didn't say anything about back flushing. I went ahead and back flushed when I got home, since every other filter I've used makes some provision for cleaning/flushing. I don't think it damaged it, but don't know for sure. I'd love someone from the company to respond to that question.

### ⭐⭐⭐⭐⭐ Travel WIN!!!!
*by S***G on August 17, 2025*

Came home from Uzbekistan with the worst case of what my grandma used to call the “gogo-amago” ever. Figured it either came from carelessly rinsing iur toothbrush in tap water, or eating a fresh fruit washed in tap water.Made an advance plan for our next trip to a third world country. No salads. No fruit unless we washed it ourselves. No smoothies unless they used bottled water. Don’t use room water provided unless we saw them filter it ourselves. Have a plan in place to provide so we won’t dehydrate and for tooth brush.This little gizmo is AMAZING. It is lightweight, super easy to pack, easy to use once you get the hang of it, cheap to use, and saves tons of plastic.My only fear is, the straw part is very sturdy, and so far the bag part is, too, but it seems much more likely to wear out, crack, or get punctured (even though it’s a thick plastic) than the straw. I wish they’d include and extra bag or two, as well as instructions to clean and store straw and bag.Well worth what seems to be an initial “investment”. Other travelers were jealous, and asked for details.Will be packing it for our next trip, to rural Morocco. Wouldn’t dream of traveling without it now. Has earned a spot in our minimal packing.Os: bought extra straws, but it seems like these things last forever. Hope we’ll get to travel enough to use the extras!

## Frequently Bought Together

- Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 1.5 gal Bag, 0.1 Micron, 5 Stage Filtration, Blue
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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-01-25*