The ProOne Big+ is a premium gravity-fed water filter with NSF/ANSI 42, 53, and P473 certifications. It removes 99.99% of bacteria, viruses, and 220+ contaminants without electricity — the top choice for home emergency water purification.
Key Features
- Filters up to 3 gallons per hour with two filter elements
- NSF/ANSI 42, 53, and P473 certified — independently tested
- No electricity, plumbing, or water pressure needed
- Each ProOne G2.0 filter element lasts up to 3,000 gallons
- Polished 304 stainless steel construction
- Removes 220+ contaminants including fluoride, lead, and PFAS
- Ideal for 1-4 person household