# MSR Guardian Water Purifier vs Platypus QuickDraw Microfilter System: specs and price compared

A sourced, side-by-side comparison of the MSR Guardian Water Purifier (MSR) and Platypus QuickDraw Microfilter System (Platypus) among backpacking water filters. Platypus QuickDraw Microfilter System is the cheaper of the two at $35.18.

## Side by side

| Spec | MSR Guardian Water Purifier | Platypus QuickDraw Microfilter System |
| --- | --- | --- |
| US price | $350.87 | $35.18 |
| Brand | MSR | Platypus |
| Filtration rating microns | 0.02 | 0.2 |
| Flow rate lpm | 2.5 | 3 |
| Rated lifetime (L) | 10000 | 1000 |
| Filter media type | advanced hollow-fiber membrane | hollow-fiber membrane |
| Removes bacteria protozoa virus | bacteria, protozoa, and virus (EPA-compliant purifier) | bacteria and protozoa (no virus) |
| Weight (oz) | 17 | 2.9 |
| Field cleanable backflush | Yes | Yes |
| Cartridge replaceable | No | Yes |

## Key differences

- Filtration rating microns: MSR Guardian Water Purifier 0.02 vs Platypus QuickDraw Microfilter System 0.2
- Flow rate lpm: MSR Guardian Water Purifier 2.5 vs Platypus QuickDraw Microfilter System 3
- Rated lifetime (L): MSR Guardian Water Purifier 10000 vs Platypus QuickDraw Microfilter System 1000
- Filter media type: MSR Guardian Water Purifier advanced hollow-fiber membrane vs Platypus QuickDraw Microfilter System hollow-fiber membrane
- Removes bacteria protozoa virus: MSR Guardian Water Purifier bacteria, protozoa, and virus (EPA-compliant purifier) vs Platypus QuickDraw Microfilter System bacteria and protozoa (no virus)
- Weight (oz): MSR Guardian Water Purifier 17 vs Platypus QuickDraw Microfilter System 2.9
- Cartridge replaceable: MSR Guardian Water Purifier No vs Platypus QuickDraw Microfilter System Yes

## Sources

- MSR Guardian Water Purifier: https://www.cascadedesigns.com/products/guardian-purifier (cascadedesigns.com, verified 2026-08-11)
- Platypus QuickDraw Microfilter System: https://www.cascadedesigns.com/products/quickdraw-filter (cascadedesigns.com, verified 2026-08-11)

Canonical: https://frontdeskreview.com/gear/backpacking-water-filters/msr-guardian-vs-platypus-quickdraw/
Cite: Per The Front Desk Review, MSR Guardian Water Purifier ($350.87) vs Platypus QuickDraw Microfilter System ($35.18) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/backpacking-water-filters/msr-guardian-vs-platypus-quickdraw/
License: CC BY 4.0.