System reviews

Every review below tests the same things: filtration stages, contaminant coverage, certifications, flow rate, filter life, maintenance, and real ownership cost. Specs come from the manufacturers unless noted.

Aquasana Rhino Whole House Water Filter Review

The certified dual tank system. 97 percent chlorine reduction tested to NSF/ANSI 42, 1,000,000 gallons of filter life, and the deepest bench of add ons in the category. The pick for buyers who want independent certification.

SpringWell CF1 Whole House Water Filter Review

The buy once tank. A lifetime warranty on tank and head, about $30 a year in upkeep, and 1,000,000 gallons of filter life. The pick for buyers who want to install once and think about it yearly at most.

iSpring WGB32B Whole House Water Filter Review

The budget cartridge system. About $517, a genuine DIY install, and 15 gpm of flow. The pick for buyers who want the lowest entry price and do not mind a yearly cartridge swap.