GRAYL UltraPress Water Purifier vs MSR Guardian Water Purifier
Head-to-head comparison of GRAYL UltraPress Water Purifier vs MSR Guardian Water Purifier. Specs, pricing, pros/cons, and our verdict on which water filtration system to buy.
| Specification | ||
|---|---|---|
| Filter Type | press purifier | pump purifier |
| Weight Oz | 12.5 | 17.3 |
| Capacity Oz | 16.9 | — |
| Flow Rate | 16.9 oz in 10 seconds | 2.5 L/min |
| Filter Life Gallons | 40 | 2,642 |
| Filter Life Liters | 150 | 10,000 |
| Pore Size | electroadsorptive media | hollow fiber + medical-grade fiber |
| Contaminants Removed | bacteria, protozoa, viruses, chemicals, heavy metals, microplastics | bacteria, protozoa, viruses, sediment, microplastics |
| Requires Power | No | No |
| Virus Removal | Yes | Yes |
| Bpa Free | Yes | — |
| Replacement Cartridge Cost | $25 | — |
| Cartridge Shelf Life Years | 10 | — |
| Operating Temp | above freezing | above freezing |
| Self Cleaning | — | Yes |
| Pump Strokes Per Liter | — | 40 |
| Hose Length Inches | — | 36 |
| Meets Standard | — | NSF P248 military testing protocol |
🏆 Our Verdict
Choose the GRAYL UltraPress Water Purifier if you need a reliable and proven filtration solution and strong value for the price.
Choose the MSR Guardian Water Purifier if you prioritize premium features and build quality .
Related
Frequently Asked Questions
Is the GRAYL UltraPress Water Purifier better than the MSR Guardian Water Purifier?
The MSR Guardian Water Purifier scores 9.1/10 vs 8.5/10 overall. Choose based on your specific filtration needs, capacity requirements, and whether you prioritize value and ease of use.
Which is more portable, GRAYL UltraPress Water Purifier or MSR Guardian Water Purifier?
The MSR Guardian Water Purifier is lighter at NaN lbs vs NaN lbs.
Which offers better value, GRAYL UltraPress Water Purifier or MSR Guardian Water Purifier?
The GRAYL UltraPress Water Purifier costs $80 while the MSR Guardian Water Purifier costs $325. Consider the filter lifespan and replacement costs when evaluating long-term value.

