LifeStraw Peak Series Personal Water Filter Straw
- 4000 liters capacity
- 1.7 liters per minute maximum flow
- 1500 ppm TDS maximum
- 0.1 kg, 8.5 inches long
- Microfiltration membrane
- 5 year shelf life
- BPA-free plastic
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A light personal filter straw with a microfiltration membrane for backup filtration, emergency use and ultralight hydration. The listing does not state what the membrane removes.
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ASIN: B09SBPWHS7Category: Camping Water Filters
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Overview
LifeStraw makes the Peak Series as a slim straw that filters water through a microfiltration membrane with no power needed. It is made of BPA-free plastic and is aimed at emergencies and ultralight trips.
A high rated capacity, a quick maximum flow and a very low weight are the reasons to carry it as a backup. The limits are an unlisted removal claim, a TDS ceiling that rules out salty sources and no care or backflush steps.
Who it's for
Hikers and travelers who want a tiny filter in a pack or glove box get a high capacity straw with no moving parts. Anyone needing documented virus removal, or working with salty water, should check a purifier with test data.
Pros and cons
- High rated capacity
- Quick maximum flow
- No power needed
- Contaminants removed not listed
- TDS limit excludes salty sources
- Care steps not described
Performance notes
A microfiltration membrane blocks particles larger than its pores, so performance depends on the pore rating, which the listing leaves out. Flow rate falls as the membrane loads with sediment, so clear water extends its life. Salt and dissolved solids pass through any membrane of this kind.
Specifications
| Brand | LifeStraw |
|---|---|
| Dimensions & fit | |
| Item weight | 0.1 kg |
| Item Dimensions L x W x H | 2.13"L x 2.09"W x 8.5"H |
| Capacity & performance | |
| Maximum Flow Rate | 1.7 liters per minute |
| Capacity | 4000 liters |
| Power & efficiency | |
| Power Source | Non Electric |
| Construction & materials | |
| Material Type | BPA Free Plastic |
| Product Shelf Life | 5 years |
| Compatibility & installation | |
| Installation Type | Freestanding |
| Included components | |
| Included Components | Filter straw |
| Warranty & support | |
| Supported Water TDS Level Maximum PPM | 1500 |
| Warranty Description | Manufacturer Warranty |
| Other details | |
| Purification Method | Microfiltration Membrane |
| Container Type | Bag |
| Item Type Name | Outdoor water filter |
| Other Special Features Of The Product | Lightweight |
Closest rivals on specs
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Frequently asked questions
How do I care for the LifeStraw Peak Series filter?
The listing gives no care or backflush steps, so follow the manual that comes with the straw.
Can the LifeStraw Peak Series filter salt water?
No claim is made for it. The listing sets a maximum of 1500 ppm total dissolved solids.