GRAYL UltraPress Water Purifier vs HydroBlu Versa Flow Water Filter
GRAYL UltraPress Water Purifier vs HydroBlu Versa Flow Water Filter compared spec-by-spec. Filtration performance, flow rate, pricing, pros, cons, and our verdict on which water filter to buy.
| Specification | ||
|---|---|---|
| Filter Type | press purifier | hollow fiber membrane |
| Weight Oz | 12.5 | 2 |
| Capacity Oz | 16.9 | — |
| Flow Rate | 16.9 oz in 10 seconds | 1.5 L/min |
| Filter Life Gallons | 40 | 26,417 |
| Filter Life Liters | 150 | — |
| Pore Size | electroadsorptive media | 0.1 micron absolute |
| Contaminants Removed | bacteria, protozoa, viruses, chemicals, heavy metals, microplastics | bacteria, protozoa, microplastics |
| Requires Power | No | No |
| Virus Removal | Yes | No |
| Bpa Free | Yes | Yes |
| Replacement Cartridge Cost | $25 | — |
| Cartridge Shelf Life Years | 10 | — |
| Operating Temp | above freezing | above freezing |
| Backflush Capable | — | Yes |
| Includes Pouches | — | Yes |
| Pouch Capacity Oz | — | 42 |
| Made In | — | China |
Buy the GRAYL UltraPress Water Purifier
Best prices · Updated hourly
Buy the HydroBlu Versa Flow Water Filter
Best prices · Updated hourly
Who Should Buy the GRAYL UltraPress Water Purifier?
The GRAYL UltraPress Water Purifier is designed for camping hiking, emergency preparedness, under 100. As a press purifier, it removes viruses, bacteria, and protozoa for true purification-level protection.
Key advantages include: true purifier — removes viruses, bacteria, protozoa, chemicals, and heavy metals; faster than geopress: 16.9 oz of purified water in just 10 seconds; 3.4 oz lighter than the geopress at 12.5 oz total weight. At 12.5 oz, it's better suited for basecamp or vehicle-based use.
Priced at $80, the GRAYL UltraPress Water Purifier scores 8.5/10 in our testing — an excellent performer across our key metrics.
Who Should Buy the HydroBlu Versa Flow Water Filter?
The HydroBlu Versa Flow Water Filter is designed for camping hiking, under 50, under 100. As a hollow fiber membrane, it handles bacteria and protozoa — appropriate for most backcountry and domestic use cases.
Key advantages include: incredibly versatile — inline, gravity, squeeze, straw, and bottle compatible; only 2 oz makes it one of the lightest filters on the market; 100,000-gallon filter life at a ~$25 price point. At 2 oz, it's ultralight and fits in any kit.
Priced at $25, the HydroBlu Versa Flow Water Filter scores 7.7/10 in our testing — a reliable choice for its price bracket.
How Do the Specs Compare?
Filter type: The GRAYL UltraPress Water Purifier is a press purifier while the HydroBlu Versa Flow Water Filter is a hollow fiber membrane. Different filter types suit different scenarios — consider your primary use case when choosing between them.
Filtration performance: The GRAYL UltraPress Water Purifier scores higher on filtration at 9.5/10 versus 8/10 for the HydroBlu Versa Flow Water Filter. The GRAYL UltraPress Water Purifier's virus removal capability is the key differentiator — essential for international travel or emergency scenarios where source water quality is unknown.
Filter life: The HydroBlu Versa Flow Water Filter lasts longer at 26,417 gallons versus 40 gallons. Factor in replacement cartridge costs when comparing long-term value.
Portability: The HydroBlu Versa Flow Water Filter is lighter at 2 oz versus 12.5 oz for the GRAYL UltraPress Water Purifier. For backpacking and wilderness travel, every ounce counts — but for car camping or emergency preparedness, weight is less critical than capacity and ease of use.
Price: The HydroBlu Versa Flow Water Filter costs $25 versus $80 for the GRAYL UltraPress Water Purifier — a $55 difference. At this price parity, the decision comes down to filtration scope and use case fit.
🏆 Our Verdict
Choose the GRAYL UltraPress Water Purifier if you need top-tier filtration performance and premium build quality and features.
Choose the HydroBlu Versa Flow Water Filter if you prioritize value (typically $55 less) .
Related
Go Deeper
More Comparisons