We also tested the Brita Complete Faucet Filtration System. In contrast to the other model in the Brita lineup, the Basic Faucet Filtration System, it lets you set the faucet to both a normal flow and, additionally, a spray pattern. That also sets it apart from Pur’s filters, which lack the spray option. Beyond that feature, however, we much prefer the Pur Advanced model. Pur’s faucet filters have significantly more ANSI/NSF certifications. The Brita filter is also not certified for mercury, whereas the Pur filters are. In our testing, the Brita persistently dripped, which led to a pink film on the filter housing, possibly the bacteria Serratia marcescens, which is often found in damp sinks and showers. (The water was draining out of the saturated filter; the faucet does not leak.) Finally, the Pur Advanced has a lower-profile design and a sleek shape that we like much better than the Brita Complete’s blocky, upright form.
