Of the many shower filters on the market, the 3 shown below were the only brands we found that performed as claimed. Shower filters are not regulated by any goverment agency, like drinking water filters are, and therefore we found that many companies made unrealistic and exagerated performance claims. To effectively remove chlorine from shower water at 2.5 gallons per minute, a certain volume of filter media is required. Most of the smaller brands we reviewed simply did not offer a large enough volume of media to be effective. The top 3 shown below performed at or near the manufacturers claims.

Aquasana