Sawyer · Updated August 2026
Sawyer MINI Water Filtration System (SP128): price & specs
Sawyer MINI Water Filtration System (SP128). Every price and spec below is linked to its source and dated — no guesses.
Source: sawyer.com verified verify in ledger
The Sawyer MINI Water Filtration System (SP128) is listed at $28.99 on sawyer.com as of 2026-08-11, #2 cheapest of 14 backpacking water filters (median $45); other retailers may be lower. It earns a Gold Deskmark — 92/100 pay-blind standing, #2 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 Sawyer MINI Water Filtration System (SP128) a good buy?
At $29, the Sawyer MINI Water Filtration System (SP128) is #2 cheapest of the 14 backpacking water filters we track, where the median is $45. On the spec sheet, its rated lifetime of 378541 L is the highest of the 14, its weight of 2 oz is the lowest of the 13, and its filtration rating microns of 0.1 is below the median of the 11.
Specifications
| Price (US) | $28.99 List price shown on sawyer.com at time of check; commonly seen at $19.99-$24.99 at major retailers. |
|---|---|
| Brand | Sawyer |
| Released | — |
| Filtration rating microns | 0.1 |
| Flow rate lpm | — |
| Rated lifetime (L) | 378541 |
| Filter media type | hollow-fiber membrane |
| Removes bacteria protozoa virus | bacteria and protozoa (no virus) |
| Weight (oz) | 2 |
| Field cleanable backflush | Yes |
| Cartridge replaceable | No |
Source: sawyer.com (verified 2026-08-11). Sawyer's own product page confirms 0.1 micron absolute hollow-fiber membrane, up to 100,000 gallons rated lifetime, the same bacteria/protozoa/microplastic removal percentages as the Squeeze, and backwashing with the included syringe as the recommended field-cleaning method. The page states a 4.93 oz figure that reads as full retail packaging weight and separately references "just 2 ounces" for the filter itself in the field; 2 oz (56 g) is used here as the widely corroborated bare-filter weight. No flow-rate figure is published. Single sealed hollow-fiber unit, no separate cartridge, so cartridge_replaceable is false.
Is the Sawyer MINI Water Filtration System (SP128) worth it vs cheaper backpacking water filters?
Sawyer MINI Water Filtration System (SP128) 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 | Rated lifetime (L) | Filter media type | Removes bacteria protozoa virus | Weight (oz) |
|---|---|---|---|---|---|---|
| Sawyer MINI Water Filtration System (SP128) this | $28.99 | 0.1 | 378541 | hollow-fiber membrane | bacteria and protozoa (no virus) | 2 |
| HydroBlu Versa Flow Water Filter | $25.95 | — | 378541 | hollow-fiber membrane | bacteria and protozoa (no virus, no chemicals) | 2 |
| Aquamira Frontier Max Backcountry+ Water Filter | $29.99 | — | 3785 | hollow-fiber membrane with Miraguard antimicrobial treatment (Series IV interchangeable cartridge) | bacteria only on the Backcountry+ cartridge tested here; a separate Worldwide-cartridge variant adds virus removal (rated 120 gal) | — |
Frequently asked questions
How much does the Sawyer MINI Water Filtration System (SP128) cost?
The Sawyer MINI Water Filtration System (SP128) has a US price of $28.99 (List price shown on sawyer.com at time of check; commonly seen at $19.99-$24.99 at major retailers.), as of 2026-08-11.
How does the Sawyer MINI Water Filtration System (SP128) compare on price?
At $29, the Sawyer MINI Water Filtration System (SP128) is #2 cheapest of the 14 backpacking water filters we track, where the median is $45.
What are the Sawyer MINI Water Filtration System (SP128)'s key specs?
Sawyer MINI Water Filtration System (SP128) (Sawyer): filtration rating microns 0.1, rated lifetime l 378541, filter media type hollow-fiber membrane, removes bacteria protozoa virus bacteria and protozoa (no virus), weight oz 2. Full sourced spec sheet verified 2026-08-11.
Price of record: $28.99 at sawyer.com, 2026-08-11. Other retailers may be lower — check the current price:
See Sawyer MINI Water Filtration System (SP128) on Amazon As an Amazon Associate we earn from qualifying purchases.Similar backpacking water filters
Nearest in price — swipe to browse. Every pick sourced and dated.
-
Aquamira Frontier Max Backcountry+ Water Filter -
HydroBlu Versa Flow Water Filter -
Sawyer Micro Squeeze Water Filtration System -
Platypus QuickDraw Microfilter System -
LifeStraw Peak Series Collapsible Squeeze 1L Bottle with Filter - Katadyn BeFree 1.0L Water Filter Katadyn BeFree 1.0L Water Filter
-
Sawyer Squeeze Water Filtration System (SP2129) -
MSR TrailShot Pocket-Sized Water Filter -
LifeStraw Peak Series Gravity Filter System – 3L - Katadyn Hiker Pro Water Filter Katadyn Hiker Pro Water Filter
-
GRAYL GeoPress 24oz Water Purifier - Katadyn Vario Water Filter Katadyn Vario Water Filter
All backpacking water filters ranked · Open data & methodology · Queryable via MCP
Compare with
Cheaper backpacking water filters
Step up
- Aquamira Frontier Max Backcountry+ Water Filter $29.99
- Sawyer Micro Squeeze Water Filtration System $33.99
- Platypus QuickDraw Microfilter System $35.18
- LifeStraw Peak Series Collapsible Squeeze 1L Bottle with Filter $43.95
- Katadyn BeFree 1.0L Water Filter $44.95
- Sawyer Squeeze Water Filtration System (SP2129) $45.99