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Filterwell
Filterwell Water Filter Straw

Filterwell Water Filter Straw

4.6· 13 ratings

Last price we saw

$19.95at Survival Gear BSO, last seen Nov 1

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Our take on the Filterwell Water Filter Straw

The Filterwell Water Filter Straw is a personal water filter that combines a UF hollow-fiber membrane with carbon fiber and KDF media, and it is rated for 4,000 liters (about 1,056 gallons) before replacement. It cleans up with a back flush, and the maker lists SGS food-grade certification. It suits hikers, campers and travelers who want to drink from streams, taps or questionable sources without carrying a pump. No current price was provided for this page, so check the live comparison for where it sits against its recent range.

Best forHikers and backpackers filtering streams and lakesTravelers in places where tap water is uncertainEmergency kits and car or bug-out bagsAnyone who wants a straw filter with a long rated life
Pros
  • Very long rated life at 4,000 liters (1,056 gallons)
  • Three-stage media: UF membrane, carbon fiber and KDF
  • Back flush extends usable life and restores flow
  • SGS food-grade certification listed
  • Simple straw design with no pumping or power
Cons
  • No pore size or removal claims published for the UF membrane
  • Carbon and KDF stages wear out before the membrane rating
  • Back flushing needs clean water and some effort
  • Straw format means drinking one bottle at a time, not filling a group container

Filterwell Water Filter Straw prices at every store

  • Survival Gear BSOCheck price at Survival Gear BSO

Filterwell Water Filter Straw price history

Lowest price we've seen: $19.95 on Nov 1 at Survival Gear BSO. Tracked across 1 store since Nov 1.

What reviewers say

With 13 ratings averaging 4.6 out of 5, the sample is small but positive. Owners generally report it works as a lightweight backup filter; there is not enough feedback to judge long-term durability.

Pros
  • Light and easy to carry
  • Simple to use straight from a bottle or stream
  • Back flush keeps flow going
Cons
  • Small review base makes reliability hard to judge
  • Flow slows over time without regular flushing

Specifications

Filter Material
UF hollow Fiber membrane/Carbon Fiber/KDF
Filter Life
4,000 Liter / 1,056 Gallon Life Capacity
Flush Method
Back flush
Certificate
S G S Food grade

Questions and answers

Is the Filterwell straw worth it?
If you want a light, low-cost backup filter for hiking or travel, the 4,000-liter rating and three-stage media are strong on paper. It is not a substitute for a full purifier if you need virus removal, since no pore size is published.
How does it compare with a Sawyer Squeeze or LifeStraw?
The Filterwell claims a longer life than the classic LifeStraw and adds carbon and KDF stages, which can improve taste. Sawyer filters publish absolute pore ratings and can be used as a squeeze system; the Filterwell is a straw-first design.
How often do I need to back flush it?
Flush it after each trip or whenever flow slows noticeably. Back flushing clears sediment from the membrane, but it does not restore the carbon and KDF stages, which degrade with use.
Does it remove viruses or chemicals?
No pore size or contaminant removal list is published, so do not rely on it for virus removal. The carbon and KDF stages can reduce some taste and odor compounds but are not a guarantee against dissolved chemicals.
What is in the box?
The listing does not detail the contents beyond the straw itself. Check the product page for whether a storage bag, pre-filter or cleaning syringe is included before buying.
When is it cheapest?
Straw filters usually drop during spring camping sales and fall clearance events. Set a price alert on the comparison page and buy when the current price falls below the recent range.
What do buyers say about the Filterwell Water Filter Straw?
Rated 4.6 out of 5 from 13 ratings.