Katadyn Pocket Water Filter vs ProOne Big+ Gravity Water Filter
Katadyn Pocket Water Filter vs ProOne Big+ Gravity 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 | ceramic pump filter | gravity |
| Weight Oz | 20 | — |
| Flow Rate | 1 L/min | — |
| Filter Life Gallons | 13,209 | 1,000 |
| Filter Life Liters | 50,000 | — |
| Pore Size | 0.2 micron silver-impregnated ceramic | — |
| Contaminants Removed | bacteria, protozoa, cysts, sediment, microplastics | bacteria, protozoa, chlorine, lead, PFAS, microplastics, pesticides, pharmaceuticals, heavy metals, VOCs |
| Requires Power | No | No |
| Virus Removal | No | No |
| Ceramic Cleanable | Yes | — |
| Pump Strokes Per Liter | 80 | — |
| Hose Length Inches | 30 | — |
| Dimensions | 10 x 2.4 in | — |
| Operating Temp | above freezing | — |
| Made In | Switzerland | — |
| Warranty | 20 years | — |
| Capacity Gallons | — | 3 |
| Flow Rate Gph | — | 2.75 |
| Filter Elements Included | — | 2 |
| Max Filter Elements | — | 3 |
| Filter Element | — | ProOne G3.0 7-inch |
| Material | — | 304 stainless steel |
| Height Inches | — | 22.75 |
| Diameter Inches | — | 9 |
| Weight | — | 10 lbs |
| Serves People | — | 4+ |
| Iapmo Certified | — | Yes |
Buy the Katadyn Pocket Water Filter
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Buy the ProOne Big+ Gravity Water Filter
Best prices · Updated hourly
Who Should Buy the Katadyn Pocket Water Filter?
The Katadyn Pocket Water Filter is designed for emergency preparedness, camping hiking. As a ceramic pump filter, it handles bacteria and protozoa — appropriate for most backcountry and domestic use cases.
Key advantages include: 50,000-liter ceramic filter life is the longest of any portable pump filter; silver-impregnated 0.2 micron ceramic element inhibits bacterial growth; swiss-made with a 20-year manufacturer warranty — built to last a lifetime. At 20 oz, it's better suited for basecamp or vehicle-based use.
Priced at $370, the Katadyn Pocket Water Filter scores 8.7/10 in our testing — an excellent performer across our key metrics.
Who Should Buy the ProOne Big+ Gravity Water Filter?
The ProOne Big+ Gravity Water Filter is designed for gravity fed cabin, emergency preparedness. As a gravity, it handles bacteria and protozoa — appropriate for most backcountry and domestic use cases.
Key advantages include: iapmo certified to reduce lead, total pfas, microplastics, and chlorine; 3-gallon capacity serves households of 4+ people easily; 304 stainless steel construction is durable and easy to clean. At 10 lbs, it's better suited for basecamp or vehicle-based use.
Priced at $280, the ProOne Big+ Gravity Water Filter scores 8.5/10 in our testing — an excellent performer across our key metrics.
How Do the Specs Compare?
Filter type: The Katadyn Pocket Water Filter is a ceramic pump filter while the ProOne Big+ Gravity Water Filter is a gravity. Different filter types suit different scenarios — consider your primary use case when choosing between them.
Filtration performance: The ProOne Big+ Gravity Water Filter scores higher on filtration at 9/10 versus 8.5/10 for the Katadyn Pocket Water Filter. Both provide reliable protection for their intended use cases.
Filter life: The Katadyn Pocket Water Filter lasts longer at 13,209 gallons versus 1,000 gallons. Factor in replacement cartridge costs when comparing long-term value.
Portability: The Katadyn Pocket Water Filter is lighter at 20 oz versus 10 lbs for the ProOne Big+ Gravity Water Filter. 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 ProOne Big+ Gravity Water Filter costs $280 versus $370 for the Katadyn Pocket Water Filter — a $90 difference. At this price parity, the decision comes down to filtration scope and use case fit.
🏆 Our Verdict
Choose the Katadyn Pocket Water Filter if you need top-tier filtration performance and premium build quality and features.
Choose the ProOne Big+ Gravity Water Filter if you prioritize value (typically $90 less) .
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