ProOne Big II

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Fulfillment time approx 3-5 business days

ProOne Big II

Whether on the go, emergency preparedness or for daily use, be at ease knowing you have clean drinkable water with a ProOne® Gravity water filtration system. 

Easy to set up. No electricity or plumbing required. Use with just about any potable water source whether at home, office, school, camping or traveling. 

All ProOne® gravity systems feature ProOne® G2.0 “all-in-one” NSF/ANSI-42 component certified filter technology – the smarter filter™. Independent lab tested to NSF standards 42, 53, P231, microplastics,1,4 Dioxane, Microcystin, emerging contaminants, PFOAS (GenX), TTHM’s, bacteria, Fluoride, Lead, Parasites and more. Visit our Lab reports for full details on the 200+ tested contaminants. 

The ProOne® Big II system is made from BPA free plastic and includes a plastic spigot.

ProOne® Big II system features include: 

  • Recommended for 2-4 users 

  • 2.5 gallon capacity 

  • Standard # of filters: 1 

  • Maximum # of filters: 2

  • Nested Dimensions: 9.25" x 11"

  • Assembled Dimensions: 9.25" x 21"

  • BPA free plastic housing

  • Water level viewing window

  • Includes 1 ProOne® G2.0 5" Filter Element (upgraded options available)

  • Includes plastic spigot


*Filter life expectancy may vary depending on specific water chemistry and filter cleaning frequency

California Prop 65 warnings: