LifeStraw · Updated August 2026
LifeStraw Peak Series Gravity Filter System – 3L: price & specs
LifeStraw Peak Series Gravity Filter System – 3L. Every price and spec below is linked to its source and dated — no guesses.
Source: lifestraw.com verified verify in ledger
The LifeStraw Peak Series Gravity Filter System – 3L is listed at $65.95 on lifestraw.com as of 2026-08-11, #10 cheapest of 14 backpacking water filters (median $45); other retailers may be lower. It earns a Bronze Deskmark — 40/100 pay-blind standing, #9 of 13 in class.
Verified Aug 11, 2026 · figures linked to their source in the table below
Cheapest backpacking water filters: HydroBlu Versa Flow Water Filter — $25.95
Is the LifeStraw Peak Series Gravity Filter System – 3L a good buy?
At $66, the LifeStraw Peak Series Gravity Filter System – 3L is #9 cheapest of the 14 backpacking water filters we track, where the median is $45. On the spec sheet, its flow rate lpm of 1.7 is below the median of the 9, its weight of 8.1 oz is above the median of the 13, and its filtration rating microns of 0.2 is at the median of the 11.
Specifications
| Price (US) | $65.95 Current price on lifestraw.com. |
|---|---|
| Brand | LifeStraw |
| Released | — |
| Filtration rating microns | 0.2 |
| Flow rate lpm | 1.7 |
| Rated lifetime (L) | 2000 |
| Filter media type | membrane microfilter (hollow-fiber) |
| Removes bacteria protozoa virus | bacteria and protozoa (no virus) |
| Weight (oz) | 8.1 |
| Field cleanable backflush | Yes |
| Cartridge replaceable | Yes |
Source: lifestraw.com (verified 2026-08-11). CORRECTED FROM SEED: "LifeStraw Flex" is discontinued and does not appear anywhere in LifeStraw's current full catalog (all three catalog pages checked directly, sorted through ~50 SKUs; no "Flex"-named product exists). It has been replaced here with the "Peak Series Gravity Filter System – 3L," the closest current multi-use system (gravity bag, hose, and bottle-thread adapter) in the same successor product family. Its own page confirms a 0.2 micron membrane microfilter, 1.7 L/min gravity flow, up to 2,000 L rated lifetime, 99.999999% bacteria / 99.999% protozoa removal, an 8.1 oz (228 g) weight, an included backwash syringe for field cleaning, and separately-sold replacement membrane and carbon filters. Note this base 3L gravity system does not remove viruses; a separate "Peak Series Gravity Purifier with virus removal" ($189.95) and standalone "Gravity Purifier Replacement Filter" (rated 18,000 L, ultrafiltration) exist as different, pricier products in the same family and are not what is described here.
Is the LifeStraw Peak Series Gravity Filter System – 3L worth it vs cheaper backpacking water filters?
LifeStraw Peak Series Gravity Filter System – 3L against its closest cheaper and pricier backpacking water filters on the specs that matter — every value sourced. See all 14 ranked
| Product | Price | Filtration rating microns | Flow rate lpm | Rated lifetime (L) | Filter media type | Removes bacteria protozoa virus |
|---|---|---|---|---|---|---|
| LifeStraw Peak Series Gravity Filter System – 3L this | $65.95 | 0.2 | 1.7 | 2000 | membrane microfilter (hollow-fiber) | bacteria and protozoa (no virus) |
| MSR TrailShot Pocket-Sized Water Filter | $61.37 | 0.2 | 1 | 2000 | hollow-fiber membrane | bacteria and protozoa (no virus) |
| Katadyn Hiker Pro Water Filter | $79.95 | 0.3 | 1 | 750 | glass-fiber depth filter + activated carbon core | bacteria and protozoa (no virus) |
Frequently asked questions
How much does the LifeStraw Peak Series Gravity Filter System – 3L cost?
The LifeStraw Peak Series Gravity Filter System – 3L has a US price of $65.95 (Current price on lifestraw.com.), as of 2026-08-11.
How does the LifeStraw Peak Series Gravity Filter System – 3L compare on price?
At $66, the LifeStraw Peak Series Gravity Filter System – 3L is #9 cheapest of the 14 backpacking water filters we track, where the median is $45.
What are the LifeStraw Peak Series Gravity Filter System – 3L's key specs?
LifeStraw Peak Series Gravity Filter System – 3L (LifeStraw): filtration rating microns 0.2, flow rate lpm 1.7, rated lifetime l 2000, filter media type membrane microfilter (hollow-fiber), removes bacteria protozoa virus bacteria and protozoa (no virus). Full sourced spec sheet verified 2026-08-11.
Price of record: $65.95 at lifestraw.com, 2026-08-11. Other retailers may be lower — check the current price:
See LifeStraw Peak Series Gravity Filter System – 3L on Amazon As an Amazon Associate we earn from qualifying purchases.Similar backpacking water filters
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Compare with
Cheaper backpacking water filters
- MSR TrailShot Pocket-Sized Water Filter $61.37
- Sawyer Squeeze Water Filtration System (SP2129) $45.99
- Katadyn BeFree 1.0L Water Filter $44.95
- LifeStraw Peak Series Collapsible Squeeze 1L Bottle with Filter $43.95
- Platypus QuickDraw Microfilter System $35.18
- Sawyer Micro Squeeze Water Filtration System $33.99