Sentry H20

Sentry H2O is a family-owned and operated small business in Tempe, Arizona committed to making waves in the water filtration industry by providing families and businesses with the most effective, yet affordable water treatment systems that work for all types of water. They quickly realized that to get affordable, toxin-free, mineral-enriched water for our family, we were going to have to design a water treatment system ourselves. 

By combining the best German water technology with innovative American engineering, Sentry H2O proudly provides families and businesses across America with one-of-a-kind water treatment systems that both remove harmful toxins and enrich water with essential nutrients so that everyone can have easy, affordable access to healthy water.

8 products

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8 products

FAQs

Why do you carry multiple brands instead of just one?

No single brand is best at everything. Some specialize in reverse osmosis systems, whole house filtration, commercial equipment, or wellness technology. We help simplify the process by offering trusted, proven solutions across every category so you can choose with confidence knowing your system is built to perform.

Why do some systems cost more than others?

Pricing varies based on number of filtration stages, system capacity (GPM / output), technology (RO, UV, hydrogen, etc.), build quality and components. Most systems range widely from a few hundred dollars to several thousand depending on features and performance. Higher-end systems typically offer better purification, longer lifespan, and more advanced features

Can I mix products from different brands?

Yes in most cases, systems are modular. You can combine whole house filtration + RO system, softener + conditioner, specialty wellness products. Just ensure filter sizes, flow rates, and connections are compatible. We recommended staying in the same brand to ensure efficiency and a void warranty.

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