




Gravity Water Filter
1% of every sale is donated to the National Park Foundation. Learn more
In stock! Ships within 1-2 business days.
90-day risk-free trial
2-Year Warranty
TERA Gravity Water Filtration System
Safe Water. Anywhere You Go.
The TERA Gravity Water Filtration System provides clean drinking water from lakes, rivers, or taps. With its five-stage filter, high flow rate, and gravity bag setup, it's the ideal solution for emergency kits, travel, or daily use off-grid.
Multi-Stage Filtration
- 5-stage system filters out over 10 types of harmful substances
- Removes particulates, chlorine, rust, sand, dirt, and bad odors
- 0.1 micron hollow fiber membrane ensures high filtration precision
Efficient and Easy to Use
- Gravity-fed design means no pumping or squeezing required
- Large-capacity gravity bag holds up to 1.5 gallons at once
- Filters up to 1,400 gallons with backflush capability for long-term reuse
- Compact straw can be used independently or with the water bag
Specs
- Model: WD-F5SBU
- Filter Accuracy: 0.1 micron
- Total Filtration Capacity: 1,400 gallons per straw
- Water Bag Capacity: 1.5 gallons (5.6L)
- Components: Filter straw, water bag, hose, small storage pouch
- Filtration Materials: Pre-filter fabric, hollow fiber membrane, non-woven fabric, activated carbon fiber, post-filter fabric
Why TERA Filtration
When clean water isn’t guaranteed, you need gear that performs. The TERA Gravity Water Filtration System delivers safe, fast, and hassle-free hydration with reliable technology and rugged components you can trust.
FAQ
-
Q: What’s included in the kit?
A: Filter straw, large gravity water bag, connecting hose, and clear water pouch. -
Q: How long does the filter last?
A: Each straw can filter up to 1,400 gallons of water. Backflushing can extend its life to over 100,000 gallons. -
Q: Does it remove viruses?
A: This system filters bacteria, protozoa, sediment, and chemicals. It does not remove viruses. -
Q: Is it suitable for tap water?
A: Yes. It improves taste and removes common contaminants from tap water as well. -
Q: Can I drink directly from the straw?
A: Yes. The straw is detachable and works on its own or with the gravity bag setup.

Gravity Water Filter
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
-
Information
Share contact information, store details, and brand content with your customers.
-
Shipping Information
Use this text to answer questions in as much detail as possible for your customers.
-
Customer Support
Use this text to answer questions in as much detail as possible for your customers.
-
FAQ’s
Use this text to answer questions in as much detail as possible for your customers.
-
Contact Us
Use this text to answer questions in as much detail as possible for your customers.