This stylish, chrome-plated system attaches to the faucet head--so water flows directly through the filter to the sink. Assembly instructions, including a video, are available on the Pur Web site. Tilting the filter back allows unfiltered water through for household chores such as dishwashing.

Water flows through the system at a rate of 2-1/2 liters per minute with pressure levels of 60 PSI. An automatic safety monitor (ASM) notifies users when it's time to replace the filter. Filters last approximately two to three months and may be purchased in bulk. While Pur filters rid water of many harmful chemicals, coloration, and bad flavors, they do not soften water or remove fluoride. This item weighs 3 pounds when shipped. --Jessica Reuling