AO Smith High-Efficiency Reverse Osmosis

by A.O. Smith

A solid reverse osmosis system from an established manufacturer that effectively removes most contaminants including fluoride, heavy metals, and pharmaceuticals. The multi-stage filtration is thorough, though like all RO systems, it removes beneficial minerals and produces wastewater.

• Thin-film Composite RO Membrane – safe · Semi-permeable membrane that removes dissolved contaminants through reverse osmosis process.
• Carbon Block Filters – beneficial · Activated carbon removes chlorine, taste, odor, and some organic compounds.
• Polypropylene Housing – safe · Food-grade plastic housing that's generally inert and doesn't leach chemicals.

Removes 99%+ of contaminants including heavy metals, pharmaceuticals, and PFAS

NSF certified for safety and performance

Established brand with good reputation

Effective at removing chlorine taste and odor

Reduces cancer-causing contaminants

Removes beneficial minerals like calcium and magnesium

Produces significant wastewater (3-4 gallons waste per gallon filtered)

Ongoing filter replacement costs

Slower flow rate compared to other filter types

May require mineral supplementation for optimal health