Membrane Solutions 3L Gravity Water Filtration System (Blue)

The Membrane Solutions 3L Gravity Water Filter (Blue) is an advanced and highly efficient water filtration system designed to provide constant access to clean and safe drinking water in all field conditions. Produced by the renowned brand Membrane Solutions, this gravity emergency kit is perfect for camping, survival camps, and bushcraft expeditions. It also serves as an indispensable piece of gear for a Bug Out Bag (BOB) and as an excellent safeguard in the event of natural disasters or sudden municipal water supply failures.

The system's design is based on an innovative combination of two independent and replaceable filter elements. The first stage of protection is an advanced Hollow Fiber membrane with pores as small as 0.1 microns, which acts as a physical barrier against pathogens. It effectively removes up to 99.99999% of harmful bacteria, 99.99% of waterborne parasites (protozoa), and up to 99.999% of microplastics from the water, while also retaining solid contaminants such as silt, sand, and rust. The second stage is a replaceable carbon filter with a coconut fiber coating. The activated carbon effectively reduces heavy metals, chlorine, and organic chemical compounds, while significantly improving the taste, clarity, and odor of the filtered water.

The heart of the gravity kit is the personal Straw I filter, which is connected to a flexible and durable, high-capacity 3-liter water bag. The system operates fully autonomously using the natural force of gravity—it requires no external power source, pumping, or harmful chemicals to function. Simply fill the bag with untreated water from a river, lake, or stream, hang it using the included strap, and connect it to the straw filter with the silicone tube. The device offers an optimal water flow rate of up to 450 ml per minute, allowing for efficient supply of drinking water for an entire camping group.

The filter housing is made of a lightweight, durable, and impact-resistant BPA-free polymer, which guarantees full health safety and no leaching of toxins. The entire set is characterized by its compact dimensions and low weight (only 315 g), making it easy to fit into any hiking backpack. The included cord with a handy plastic clip allows for easy and stable hanging of the reservoir on a tree branch or tent structure. The system meets rigorous SGS and US EPA safety standards, confirming its top quality and reliability in the most difficult crisis situations.

Key Features:

1. Manufacturer: Original product created by the renowned Membrane Solutions brand.
2. Model and product code: Gravity water filtration system, manufacturer code OESF005.
3. Reservoir capacity: Durable and spacious water bag holding exactly 3 liters of liquid.
4. Product weight: The total weight of the complete kit is only 315 g.
5. Filter weight: The personal straw filter weighs just 57 g.
6. Filter dimensions: Compact straw housing with exact dimensions of 170 x 30 x 30 mm (17 x 3 x 3 cm).
7. Material: High-quality medical-grade polymer completely free of harmful BPA.
8. Filtration technology: Four-stage system (screen, cotton fibers, coconut activated carbon, Hollow Fiber membrane).
9. Membrane effectiveness: Removes up to 99.99999% of bacteria, 99.99% of parasites, and 99.999% of microplastics 0.1 μm and larger.
10. Filtration capacity: The integrated Hollow Fiber membrane has a lifespan of up to 5,000 liters of purified water.
11. Carbon filter lifespan: The replaceable activated carbon cartridge is effective for up to 100 liters of water.
12. Water flow: Maximum gravity filtration speed is up to 450 ml per minute (450 ml/min).
13. Quality improvement function: Activated carbon reduces chemicals and effectively improves the taste and smell of water.
14. Safety class and standards: Compliance with rigorous quality standards from SGS and the US EPA.
15. Operating principle: Fully gravity-fed filtration without the use of chemicals, batteries, or the need for pumping.
16. Set contents: Straw I filter, 3L bag, hanging strap, silicone tube, plastic clip, and carrying pouch.
17. Color: The kit components feature a universal blue finish (Blue).
18. Application: Indispensable for survival, bushcraft, mountain hiking, camping, and as emergency gear.